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  • The Baltimore and Ohio Railroad Crossings at the Potomac River are a set of railroad bridges (on the National Register of Historic Places) that span the Potomac River between Maryland Heights, Maryland and Harpers Ferry, West Virginia, USA. Two bridges comprise the current crossing. in this image is the older bridge, a steel Pratt truss and plate girder bridge dating to 1894, carrying the B&O Valley line toward Winchester, Virginia along the Shenandoah River. A tunnel was built at the same time as the 1894 bridge to carry the tracks through Maryland Heights and to eliminate a sharp curve. The western end of the tunnel was widened in conjunction with the construction of the second bridge to allow the broadest possible curve across the river. Just downstream of the 1894 bridge, almost at the confluence of the Potomac and Shenandoah Rivers, are the ruins of two previous bridges on the same alignment. The newer of the bridges was a Bollman truss bridge that carried rail and highway traffic from 1870 until 1936, when it was swept away by a flood. As of 2008, Amtrak, the US national passenger rail system, provides service to Harpers Ferry twice a day (once in each direction). It is also served by the MARC commuter rail service, on its Brunswick line. The city's passenger rail station is located at the West Virginia end of the historic railroad bridge across the Potomac River. In addition about forty or fifty CSX freight trains daily pass through Harpers Ferry and over the bridge spanning the Potomac River.
    08WV-1201_Potomac-River-BO-Railroad.jpg
  • Fall leaf colors reflect in Eno River, in Eno River State Park, which is in Durham and Orange Counties, North Carolina, USA. Native Americans of the Eno, Shakori and Occoneechee tribes lived along the river prior to European settlement. Some of the tribes merged in the late 17th century and established a village near present-day Durham. Settlers moved to the area later to set up farms and more than 30 mills along the length of the Eno River.  Efforts to establish Eno River State Park started in 1965 when the city of Durham proposed building a reservoir in the river valley. A group of concerned citizens led a campaign to save the Eno and formed the Association for the Preservation of the Eno River Valley. In May 1972, the state of North Carolina approved the park, and the reservoir was not built. In 1975, the state--with help from the Eno River Association and the Nature Conservancy--acquired more than 1,000 acres (4 km²) of land for the park.
    08NC-1068_Eno-River-State-Park.jpg
  • The Baltimore and Ohio Railroad Crossings at the Potomac River are a set of railroad bridges (on the National Register of Historic Places) that span the Potomac River between Maryland Heights, Maryland and Harpers Ferry, West Virginia, USA. Two bridges comprise the current crossing. in this image is the older bridge, a steel Pratt truss and plate girder bridge dating to 1894, carrying the B&O Valley line toward Winchester, Virginia along the Shenandoah River. A tunnel was built at the same time as the 1894 bridge to carry the tracks through Maryland Heights and to eliminate a sharp curve. The western end of the tunnel was widened in conjunction with the construction of the second bridge to allow the broadest possible curve across the river. Just downstream of the 1894 bridge, almost at the confluence of the Potomac and Shenandoah Rivers, are the ruins of two previous bridges on the same alignment. The newer of the bridges was a Bollman truss bridge that carried rail and highway traffic from 1870 until 1936, when it was swept away by a flood. As of 2008, Amtrak, the US national passenger rail system, provides service to Harpers Ferry twice a day (once in each direction). It is also served by the MARC commuter rail service, on its Brunswick line. The city's passenger rail station is located at the West Virginia end of the historic railroad bridge across the Potomac River. In addition about forty or fifty CSX freight trains daily pass through Harpers Ferry and over the bridge spanning the Potomac River.
    08WV-1146_Potomac-River-BO-Railroad.jpg
  • The Temperance River cuts a gorge through soft lava and enters Lake Superior within Temperance River State Park just north of Schroeder, near Tofte, Cook County, in northern Minnesota, USA. The State Highway 61 bridge crosses the river next to the campground.
    03MN-G0063_Temperence-River.jpg
  • In Columbia Gorge National Scenic Area, see Pierce Island in Columbia River from Beacon Rock State Park, Washington, in the Pacific Northwest, USA. The Columbia River cuts its gorge over 80 miles (130 km) westwards through the Cascade Range, with mountain walls reaching 4000 feet high (1200 meters). The gorge begins near the Deschutes River confluence with the Columbia and extends to the eastern Portland metropolitan area. The canyon connects the Columbia River Plateau with the Pacific Ocean, providing the only navigable route through the Cascades and defining the border between Washington and Oregon. The federally protected Gorge is managed by the US Forest Service. Beacon Rock is a striking monolith composed of basalt, 848 feet high (258 meters). In 1805, Lewis and Clark originally referred to it as Beaten Rock, later as Beacon Rock. They found that Beacon Rock marked the eastern-most tidal influence in the Columbia. It was later known as Castle Rock until 1915 when its name changed back to Beacon Rock. The panorama was stitched from 17 overlapping images. Published by Columbia Land Trust, Fieldbook Early Fall 2013, www.columbialandtrust.org
    1003GOR-0015-31pan_Columbia_River.jpg
  • The Baltimore and Ohio Railroad Crossings are a set of railroad bridges (on the National Register of Historic Places) that span the Potomac River between Maryland Heights, Maryland and Harpers Ferry, West Virginia, USA. Two bridges comprise the current crossing. The older bridge (shown), a steel Pratt truss and plate girder bridge dating to 1894, carrying the B&O Valley line toward Winchester, Virginia along the Shenandoah River. A tunnel was built at the same time as the 1894 bridge to carry the tracks through Maryland Heights and to eliminate a sharp curve. The western end of the tunnel was widened in conjunction with the construction of the second bridge to allow the broadest possible curve across the river. Just downstream of the 1894 bridge, almost at the confluence of the Potomac and Shenandoah Rivers, are the ruins of two previous bridges on the same alignment. The newer of the bridges was a Bollman truss bridge that carried rail and highway traffic from 1870 until 1936, when it was swept away by a flood. As of 2008, Amtrak, the US national passenger rail system, provides service to Harpers Ferry twice a day (once in each direction). It is also served by the MARC commuter rail service, on its Brunswick line. The city's passenger rail station is located at the West Virginia end of the historic railroad bridge across the Potomac River. In addition about forty or fifty CSX freight trains daily pass through Harpers Ferry and over the bridge. Panorama stitched from 3 overlapping photos.
    08WV-1143-1145pan_Potomac-River-BO-R...jpg
  • Hawks Nest State Park is located in Fayette County near Ansted, West Virginia, USA. The park's clifftop overlook along U.S. Route 60 provides a scenic vista of the New River, some 750 feet (230 meters) below. The area is named for the Osprey that once nested in the cliffs. The Hawks Nest Dam seen just below the overlook was built to provide water for a hydroelectric plant to generate power for an electro-metallurgical plant at the town of Alloy, and dates to the 1930's. The tragic Depression-era Hawk's Nest incident: Construction of the tunnel, diverting waters of New River through Gauley Mt for hydroelectric power, resulted in West Virginia's worst industrial disaster. Silica rock dust caused 109 admitted deaths in the mostly black, migrant underground work force of 3,000. A Congressional hearing placed the death toll at 476 for the period from 1930 through 1935. The tragedy brought recognition of acute silicosis as an occupational lung disease, and compensation legislation to protect workers.
    08WV-1007_New-River-WV.jpg
  • See the Gunnison River far below Dragon Point, in Black Canyon of the Gunnison National Park, near Montrose, Colorado, USA. The canyon exposes you to some of the steepest cliffs, oldest rock, and craggiest spires in North America. With two million years to work, the Gunnison River, along with the forces of weathering, has sculpted this vertical wilderness of rock, water, and sky.
    1503SW-1807_Gunnison-River.jpg
  • See the Gunnison River far below Devil's Overlook, in Black Canyon of the Gunnison National Park, near Montrose, Colorado, USA. The canyon exposes you to some of the steepest cliffs, oldest rock, and craggiest spires in North America. With two million years to work, the Gunnison River, along with the forces of weathering, has sculpted this vertical wilderness of rock, water, and sky.
    1503SW-1577_Gunnison-River.jpg
  • Nelson River flows by lush fern rain forest in Franklin-Gordon Wild Rivers National Park, Tasmania, Australia. Published in Mountain Travel Sobek 2009 Catalog.
    04AUS-40007_Nelson-River-tree-ferns.jpg
  • Hawks Nest State Park is located in Fayette County near Ansted, West Virginia, USA. The park's clifftop overlook along U.S. Route 60 provides a scenic vista of the New River, some 750 feet (230 meters) below. The area is named for the Osprey that once nested in the cliffs. The Hawks Nest Dam seen just below the overlook was built to provide water for a hydroelectric plant to generate power for an electro-metallurgical plant at the town of Alloy, and dates to the 1930's. The tragic Depression-era Hawk's Nest incident: Construction of the tunnel, diverting waters of New River through Gauley Mt for hydroelectric power, resulted in West Virginia's worst industrial disaster. Silica rock dust caused 109 admitted deaths in the mostly black, migrant underground work force of 3,000. A Congressional hearing placed the death toll at 476 for the period from 1930 through 1935. The tragedy brought recognition of acute silicosis as an occupational lung disease, and compensation legislation to protect workers.
    08WV-1008_New-River-WV.jpg
  • A foam layer cake spins in a pothole eroded into Nonesuch Shale rock on the Presque Isle River before flowing into Lake Superior. Porcupine Mountains Wilderness State Park, Michigan, USA. Tannins leached from Cedar, Spruce and Hemlock trees color the water amber and brownish green. Churned soft water (having low mineral content) creates much foam.
    03MI-G0073_Presque-Isle-River_foam-c...jpg
  • Trees reflect in the tannin-stained water of Tidal River at Wilson’s Promontory National Park in the Gippsland region of Victoria, Australia. Natural tannins leached from decomposing vegetation turn the water brown. Drive two hours from Melbourne to reach Wilson’s Promontory, or “the Prom,” which offers natural estuaries, cool fern gullies, magnificent and secluded beaches, striking rock formations, and abundant wildlife. Published on the back cover of "Light Travel: Photography on the Go" book by Tom Dempsey 2009, 2010.
    04AUS-20003_Tidal-River_Wilsons-Prom...jpg
  • Two Steps Falls, Baptism River, Tettegouche State Park, Minnesota, USA.  Visit this park on the north shore of Lake Superior, 58 miles (93 km) northeast of Duluth in Lake County on scenic Minnesota Highway 61.
    03MN-G0002_Baptism-River_Two-Steps-F...jpg
  • One of several beautiful falls tumble over "Nonesuch Shale" rock on the Presque Isle River in Porcupine Mountains Wilderness State Park, Michigan, USA.
    03MI-G0061_Presque-Isle-River_Porcup...jpg
  • The Presque Isle River carves round potholes in "Nonesuch Shale" rock before flowing into Lake Superior. Porcupine Mountains Wilderness State Park, Michigan, USA.
    03MI-02-26_Presque-Isle-River-pothol...jpg
  • Sunrise spotlights Mount Kidd and reflects in Kananaskis River in the Kananaskis Range of the Canadian Rockies, Alberta, Canada. Access the Mt Kidd Interpretive Trail from the huge Mt Kidd RV Park. Kananaskis Country is a park system west of Calgary.  This panorama was stitched from 11 overlapping photos.
    1509CAN-3009-19pan_Kananaskis-River.jpg
  • Hike to Rim Overlook starting from the Fremont River, in Capitol Reef National Park, Utah, USA. (Along the way, don't miss the side trip to majestic Hickman Natural Bridge.)
    1503SW-0393_Fremont-River.jpg
  • The Bjoreia River plunges 182 meters (145 meters direct drop) over Vøringsfossen, Norway's most famous waterfall. Vøringsfossen is in Måbødalen, a valley in the Eidfjord municipality, Hordaland county, Norway. Panorama stitched from 11 overlapping photos.
    11NOR-2060-70pan_Voringsfossen-Bjore...jpg
  • A foam layer cake spins in a pothole eroded into Nonesuch Shale rock on the Presque Isle River before flowing into Lake Superior. Porcupine Mountains Wilderness State Park, Michigan, USA. Tannins leached from Cedar, Spruce and Hemlock trees color the water amber and brownish green. Churned soft water (having low mineral content) creates much foam.
    03MI-G0086_Presque-Isle-River_foam-c...jpg
  • A foam layer cake spins in a pothole eroded into Nonesuch Shale rock on the Presque Isle River before flowing into Lake Superior. Porcupine Mountains Wilderness State Park, Michigan, USA. Tannins leached from Cedar, Spruce and Hemlock trees color the water amber and brownish green. Churned soft water (having low mineral content) creates much foam.
    03MI-G0081_Presque-Isle-River_foam-c...jpg
  • One of several beautiful falls tumble over "Nonesuch Shale" rock on the Presque Isle River in Porcupine Mountains Wilderness State Park, Michigan, USA.
    03MI-G0064_Presque-Isle-River_Porcup...jpg
  • One of several beautiful falls tumble over "Nonesuch Shale" rock on the Presque Isle River in Porcupine Mountains Wilderness State Park, Michigan, USA.
    03MI-G0062_Presque-Isle-River_Porcup...jpg
  • Sunrise illuminates Mount Kidd and reflects in Kananaskis River, in the Kananaskis Range of the Canadian Rockies, Alberta. Access the Mt Kidd Interpretive Trail from Mt Kidd RV Park in Kananaskis Country, which is a park system west of Calgary. This panorama was stitched from 9 overlapping photos.
    1509CAN-3090-98pan2_Kananaskis-River.jpg
  • Carhuacocha River Valley. Day 3 of 9 days trekking around the Cordillera Huayhuash in the Andes Mountains, Peru, South America.
    14PER2-341_Carhuacocha-River-Valley.jpg
  • Trekkers begin a 4-day version of the Inca Trail to Machu Picchu at this bridge over the Urubamba/Vilcanota River Valley, Sacred Valley of the Incas (7700 feet elevation) at railroad Kilometer 82, on the PeruRail route from Cusco to Machu Picchu, Cordillera Vilcabamba, Andes mountains, Peru, South America. Licensed by National Geographic Maps for a Geotourism Map of Peru's Sacred Valley, 2008.
    00PER-06-35_Urubamba-River_Inca-Trai...jpg
  • A sea bird reflects in Tidal River at Wilson’s Promontory National Park in the Gippsland region of Victoria, Australia. Natural tannins leach from decomposing vegetation and turn the water brown. “The Prom” offers natural estuaries, cool fern gullies, magnificent and secluded beaches, striking rock formations, and abundant wildlife. Drive two hours from Melbourne to reach Wilson’s Promontory. Renting a camper van is a great way to see Australia with “no worries” about booking a bed. One night in the campground, our camper van rocked us awake in what we though was an earthquake. The rocking soon stopped and the dark shape of a wombat (a marsupial “bear”) wandered off into the night from underneath the van, where he had been licking our tasty sink drain! Around the campground, we were also delighted to see wallabies and the Common Brushtail Possum. Visitors also commonly see echidnas, koalas, bats and sugar-gliders. Published in "Light Travel: Photography on the Go" book by Tom Dempsey 2009, 2010.
    04AUS-20006_Tidal-River_Wilsons-Prom...jpg
  • Trees reflect over stones in Merced River, Yosemite National Park, Sierra Nevada, California, USA. 100 million years ago, the Sierra Nevada crystallized into granite from magma 5 miles underground. The range started uplifting 4 million years ago, and glaciers eroded the landscape seen today in Yosemite National Park.
    1111CAL-274_Merced-River_Yosemite.jpg
  • South Island, NEW ZEALAND: A day hiker crosses Matukituki River swing bridge beneath rocky peaks of the Southern Alps. Published in Sierra Magazine, Sierra Club Outings November/December 2002. In 1990, UNESCO honored Te Wahipounamu – South West New Zealand as a World Heritage Area.
    98NZ-07-33_Matukituki-River-Swing-br...jpg
  • Lycian tombs (or necropoli) from about 400 BCE can be seen by boat on the Dalyan Çay? River, above the ancient harbor city of Caunos, on the Turquoise Coast, near the town of Koycegiz, in southwest Turkey. Dalyan means "fishing weir" in Turkish. The Dalyan Delta, with a long, golden sandy beach at its mouth, is a nature conservation area and a refuge for sea turtles (Caretta caretta) and blue crabs. Image published in the travel handbook "Moon Istanbul & the Turkish Coast" by Jessica Tamtürk, Avalon Travel Publishing, 2010.
    99TUR-16-21-Lycian-tombs_Dalyan-Rive...jpg
  • River reflection on the walk to Lake Matheson, South Island, New Zealand
    07NZ_0051-river-reflection.jpg
  • Toketee Falls (85+28 feet high in two steps), North Umpqua River, Douglas County, Oregon, USA. Columnar basalt frames the graceful falls in Umpqua National Forest. The Toketee Falls trailhead can be found 1/2 mile north of Highway 138 near Toketee Lake, 16 miles west of Diamond Lake, or 58 miles east of Roseburg.
    04UMP-0017-Toketee-Falls_N-Umpqua-Ri...jpg
  • The astounding volume of water in Thunder River emerges year-round from a deep cave system of Muav Limestone. The half-mile-long Thunder River drops 1200 feet over a series of waterfalls, making it the steepest river in the USA, and one of the shortest. It's a rare instance where a river is a tributary of a creek. While Tapeats Creek was named by the second Powell Expedition in the winter of 1871–1872, the expedition did not discover its main tributary, Thunder River (which wasn't found by European-Americans until 1904). Starting at River Mile 134.5, a portion of our party disembarked our rafts for a hike one way up beautiful Tapeats Creek Trail to the wondrous Thunder Spring and River, across remote Surprise Valley Trail, then down Deer Creek Trail to meet others of our group at The Patio and Deer Creek Falls at River Mile 136.9. This scenic one-way traverse was 8 miles with 2300 feet gain (measured by my smartphone GPS app). Day 10 of 16 days rafting 226 miles down the Colorado River in Grand Canyon National Park, Arizona, USA. Multiple overlapping photos were stitched to make this panorama.
    2103SW-B0928-930-Pano.jpg
  • A desert delight, the Thunder River emerges year-round from a deep cave system of Muav Limestone. The half-mile-long Thunder River drops 1200 feet over a series of waterfalls, making it the steepest river in the USA, and one of the shortest. It's a rare instance where a river is a tributary of a creek. While Tapeats Creek was named by the second Powell Expedition in the winter of 1871–1872, the expedition did not discover its main tributary, Thunder River (which wasn't found by European-Americans until 1904). Starting at River Mile 134.5, a portion of our party disembarked our rafts for a hike one way up beautiful Tapeats Creek Trail to the wondrous Thunder Spring and River, across remote Surprise Valley Trail, then down Deer Creek Trail to meet others of our group at The Patio and Deer Creek Falls at River Mile 136.9. This scenic one-way traverse was 8 miles with 2300 feet gain (measured by my smartphone GPS app). Day 10 of 16 days rafting 226 miles down the Colorado River in Grand Canyon National Park, Arizona, USA.
    2103SW-B0935.jpg
  • The astounding volume of water in Thunder River emerges year-round from a deep cave system of Muav Limestone. The half-mile-long Thunder River drops 1200 feet over a series of waterfalls, making it the steepest river in the USA, and one of the shortest. It's a rare instance where a river is a tributary of a creek. While Tapeats Creek was named by the second Powell Expedition in the winter of 1871–1872, the expedition did not discover its main tributary, Thunder River (which wasn't found by European-Americans until 1904). Starting at River Mile 134.5, a portion of our party disembarked our rafts for a hike one way up beautiful Tapeats Creek Trail to the wondrous Thunder Spring and River, across remote Surprise Valley Trail, then down Deer Creek Trail to meet others of our group at The Patio and Deer Creek Falls at River Mile 136.9. This scenic one-way traverse was 8 miles with 2300 feet gain (measured by my smartphone GPS app). Day 10 of 16 days rafting 226 miles down the Colorado River in Grand Canyon National Park, Arizona, USA. Multiple overlapping photos were stitched to make this panorama.
    2103SW-B0918-920-Pano.jpg
  • The astounding volume of water in Thunder River emerges year-round from a deep cave system of Muav Limestone. The half-mile-long Thunder River drops 1200 feet over a series of waterfalls, making it the steepest river in the USA, and one of the shortest. It's a rare instance where a river is a tributary of a creek. While Tapeats Creek was named by the second Powell Expedition in the winter of 1871–1872, the expedition did not discover its main tributary, Thunder River (which wasn't found by European-Americans until 1904). Starting at River Mile 134.5, a portion of our party disembarked our rafts for a hike one way up beautiful Tapeats Creek Trail to the wondrous Thunder Spring and River, across remote Surprise Valley Trail, then down Deer Creek Trail to meet others of our group at The Patio and Deer Creek Falls at River Mile 136.9. This scenic one-way traverse was 8 miles with 2300 feet gain (measured by my smartphone GPS app). Day 10 of 16 days rafting 226 miles down the Colorado River in Grand Canyon National Park, Arizona, USA.
    2103SW-B0923.jpg
  • Wind sweeps clouds of dust over Kluane Lake from the A'ay Chu (Slims River Valley), dried since 2016 glacial meltwater diversion, seen from Tachal Dahl (Sheep Mountain) Ridge, St. Elias Mountains, Yukon, Canada. Hike Sheep Creek trail (10-15 km with 500-1200 m gain or 1700-4000 ft) for spectacular views of the Slims River Valley and surrounding St. Elias Mountains, plus Kluane Lake seen from Soldier's Summit on Tachal Dahl (Sheep Mountain) Ridge. In a startling case of climate change, over 4 days in spring 2016, the Slims River suddenly disappeared, leaving windswept mud flats creating clouds of dust in the formerly clear air. With its main water supply diminished to a trickle, Kluane Lake may become an isolated basin within a few years, shrinking below its outflow into the Kluane River (which flows into the Donjek River, White River, Yukon River, and eventually the Bering Sea). Kluane Lake chemistry and fish populations are rapidly changing. For the last 300 years, abundant meltwater from the Kaskawulsh Glacier has been channeled by ice dam to drain via the 150-meter wide Slims River, north into Kluane Lake. Between 1956 and 2007, the Kaskawulsh glacier retreated by 655m, which most scientists attribute to human-caused climate change. Meltwater flooding from accelerating retreat in 2016 carved a new channel through a large ice field, diverting most flows to the Kaskawulsh River, a tributary of the Alsek, which flows into the Gulf of Alaska. Read more at: https://projects.thestar.com/climate-change-canada/yukon/.
    1906AKH-2990.jpg
  • Wind sweeps clouds of dust over Kluane Lake from the A'ay Chu (Slims River Valley), dried since 2016 glacial meltwater diversion, seen from Tachal Dahl (Sheep Mountain) Ridge, St. Elias Mountains, Yukon, Canada. Hike Sheep Creek trail (10-15 km with 500-1200 m gain or 1700-4000 ft) for spectacular views of the Slims River Valley and surrounding St. Elias Mountains, plus Kluane Lake seen from Soldier's Summit on Tachal Dahl (Sheep Mountain) Ridge. In a startling case of climate change, over 4 days in spring 2016, the Slims River suddenly disappeared, leaving windswept mud flats creating clouds of dust in the formerly clear air. With its main water supply diminished to a trickle, Kluane Lake may become an isolated basin within a few years, shrinking below its outflow into the Kluane River (which flows into the Donjek River, White River, Yukon River, and eventually the Bering Sea). Kluane Lake chemistry and fish populations are rapidly changing. For the last 300 years, abundant meltwater from the Kaskawulsh Glacier has been channeled by ice dam to drain via the 150-meter wide Slims River, north into Kluane Lake. Between 1956 and 2007, the Kaskawulsh glacier retreated by 655m, which most scientists attribute to human-caused climate change. Meltwater flooding from accelerating retreat in 2016 carved a new channel through a large ice field, diverting most flows to the Kaskawulsh River, a tributary of the Alsek, which flows into the Gulf of Alaska. Read more at: https://projects.thestar.com/climate-change-canada/yukon/. This image was stitched from multiple overlapping photos captured in June 2019 by Tom Dempsey / PhotoSeek.com.
    1906AKH-2973-p1-p1-Pano.jpg
  • The turquoise Little Colorado River and green Colorado River make their confluence at Mile 62 in Grand Canyon National Park, Arizona, USA. Downstream of Blue Spring, the Little Colorado River glows brilliant turquoise due to suspension of minerals including calcium carbonate. Day 4 of 16 days rafting 226 miles down the Colorado River in Grand Canyon National Park. Marble Canyon runs from Lees Ferry at River Mile 0 to the confluence with the Little Colorado River at Mile 62, which marks the beginning of the Grand Canyon. Although John Wesley Powell knew that no marble was found here when he named Marble Canyon, he thought the polished limestone looked like marble. In his words, "The limestone of the canyon is often polished, and makes a beautiful marble. Sometimes the rocks are of many colors – white, gray, pink, and purple, with saffron tints."
    2103SW-C0979.jpg
  • A swimmer in Little Colorado River in Grand Canyon National Park, Arizona, USA. Downstream of Blue Spring, the Little Colorado River glows brilliant turquoise due to suspension of minerals including calcium carbonate, seen on Day 4 of 16 days rafting 226 miles down the Colorado River in Grand Canyon National Park. Marble Canyon runs from Lees Ferry at River Mile 0 to the confluence with the Little Colorado River at Mile 62, which marks the beginning of the Grand Canyon. Although John Wesley Powell knew that no marble was found here when he named Marble Canyon, he thought the polished limestone looked like marble. In his words, "The limestone of the canyon is often polished, and makes a beautiful marble. Sometimes the rocks are of many colors – white, gray, pink, and purple, with saffron tints." Multiple overlapping photos were stitched to make this panorama.
    2103SW-F23-32-Pano.jpg
  • Kluane National Park and Reserve, St. Elias Mountains, Yukon, Canada. Hike Sheep Creek trail (10-15 km with 500-1200 m gain or 1700-4000 ft) for spectacular views of the Slims River Valley and surrounding St. Elias Mountains, plus Kluane Lake seen from Soldier's Summit on Tachal Dahl (Sheep Mountain) Ridge. In a startling case of global warming, over 4 days in spring 2016, the Slims River suddenly disappeared, leaving windswept mud flats creating clouds of dust in the formerly clear air. With its main water supply cut off, Kluane Lake will be isolated within a few years, shrinking below its outflow into the Kluane River (which flows into the Donjek River, White River, Yukon River, and eventually the Bering Sea). Kluane Lake chemistry and fish populations are rapidly changing. For the last 300 years, abundant meltwater from the Kaskawulsh Glacier has been channeled by ice dam to drain via the 150-meter wide Slims River, north into Kluane Lake. Between 1956 and 2007, the Kaskawulsh glacier retreated by 600-700m, which most scientists attribute to anthropogenic climate change. Meltwater flooding from accelerating retreat in 2016 carved a new channel through a large ice field, diverting all flows to the Kaskawulsh River, a tributary of the Alsek, which flows into the Gulf of Alaska. This image was stitched from multiple overlapping photos.
    1906AKH-2903-p1-Pano.jpg
  • Multnomah Falls plunges 620 feet in two tiers in Columbia River Gorge National Scenic Area, adjacent to Interstate 84 and Historic Columbia River Highway, in Oregon, USA. A foot trail leads to Benson Footbridge, a 45-foot (14 m) long footbridge that allows visitors to cross 105 feet (32 m) above the lower cascade. Panorama stitched from 5 overlapping images.
    10GOR-0360-364pan_Multnomah-Falls.jpg
  • Multnomah Falls upper tier plunges 542 feet in Columbia River Gorge National Scenic Area, on Historic Columbia River Highway and Interstate 84, Oregon, USA. Panorama stitched from 5 images.
    10GOR-0326-30pan_Multnomah-Falls.jpg
  • A swimmer in Little Colorado River in Grand Canyon National Park, Arizona, USA. Downstream of Blue Spring, the Little Colorado River glows brilliant turquoise due to suspension of minerals including calcium carbonate, seen on Day 4 of 16 days rafting 226 miles down the Colorado River in Grand Canyon National Park. Marble Canyon runs from Lees Ferry at River Mile 0 to the confluence with the Little Colorado River at Mile 62, which marks the beginning of the Grand Canyon. Although John Wesley Powell knew that no marble was found here when he named Marble Canyon, he thought the polished limestone looked like marble. In his words, "The limestone of the canyon is often polished, and makes a beautiful marble. Sometimes the rocks are of many colors – white, gray, pink, and purple, with saffron tints."
    2103SW-C0967.jpg
  • A swimmer in Little Colorado River in Grand Canyon National Park, Arizona, USA. Downstream of Blue Spring, the Little Colorado River glows brilliant turquoise due to suspension of minerals including calcium carbonate, seen on Day 4 of 16 days rafting 226 miles down the Colorado River in Grand Canyon National Park. Marble Canyon runs from Lees Ferry at River Mile 0 to the confluence with the Little Colorado River at Mile 62, which marks the beginning of the Grand Canyon. Although John Wesley Powell knew that no marble was found here when he named Marble Canyon, he thought the polished limestone looked like marble. In his words, "The limestone of the canyon is often polished, and makes a beautiful marble. Sometimes the rocks are of many colors – white, gray, pink, and purple, with saffron tints."
    2103SW-C0959.jpg
  • Colorado River views from the trail above Deer Creek Falls in Grand Canyon National Park, Arizona, USA. Starting at River Mile 134.5, a portion of our party disembarked our rafts for a hike one way up beautiful Tapeats Creek Trail to the wondrous Thunder Spring and River, across remote Surprise Valley Trail, then down Deer Creek Trail to meet others of our group at The Patio and Deer Creek Falls at River Mile 136.9. This scenic one-way traverse was 8 miles with 2300 feet gain (measured by my smartphone GPS app). Day 10 of 16 days rafting 226 miles down the Colorado River in Grand Canyon National Park, Arizona, USA.
    2103SW-B0984.jpg
  • Hikers on Tapeats Creek Trail above Colorado River Mile 134 in Grand Canyon NP, Arizona, USA. Starting at River Mile 134.5, a portion of our party disembarked our rafts for a hike one way up beautiful Tapeats Creek Trail to the wondrous Thunder Spring and River, across remote Surprise Valley Trail, then down Deer Creek Trail to meet others of our group at The Patio and Deer Creek Falls at River Mile 136.9. This scenic one-way traverse was 8 miles with 2300 feet gain (measured by my smartphone GPS app). Day 10 of 16 days rafting 226 miles down the Colorado River in Grand Canyon National Park. Two overlapping photos were stitched to make this panorama. For this photo’s licensing options, please inquire at PhotoSeek.com. .
    2103SW-B0850-851-Pano-Edit.jpg
  • Multnomah Falls plunges 620 feet in two tiers. Columbia River Gorge National Scenic Area, on Historic Columbia River Highway and Interstate 84, Oregon, USA. A foot trail leads to Benson Footbridge, a 45-foot (14 m) long footbridge that allows visitors to cross 105 feet (32 m) above the lower cascade.
    10GOR-0344-346pan_Multnomah-Falls.jpg
  • Multnomah Falls upper tier (542 feet plunge) blasts mist onto a mossy boulder in Columbia River Gorge National Scenic Area, located on Historic Columbia River Highway and Interstate 84, Oregon, USA.
    10GOR-0338.jpg
  • Multnomah Falls upper tier plunges 542 feet in Columbia River Gorge National Scenic Area, on Historic Columbia River Highway and Interstate 84, Oregon, USA. Panorama stitched from 4 images.
    10GOR-0331-34pan.jpg
  • Moss and lichen smothers trees in Columbia River Gorge National Scenic Area, on Historic Columbia River Highway and Interstate 84, Oregon, USA.
    10GOR-0313.jpg
  • Horsetail Falls on Horsetail Creek, along Historic Columbia River Highway, Columbia River Gorge National Scenic Area, Oregon
    10GOR-0206.jpg
  • Downstream of Blue Spring, the Little Colorado River glows brilliant turquoise due to suspension of minerals including calcium carbonate, seen on Day 4 of 16 days rafting 226 miles down the Colorado River in Grand Canyon National Park, Arizona, USA. Marble Canyon runs from Lees Ferry at River Mile 0 to the confluence with the Little Colorado River at Mile 62, which marks the beginning of the Grand Canyon. Although John Wesley Powell knew that no marble was found here when he named Marble Canyon, he thought the polished limestone looked like marble. In his words, "The limestone of the canyon is often polished, and makes a beautiful marble. Sometimes the rocks are of many colors – white, gray, pink, and purple, with saffron tints." Multiple overlapping photos were stitched to make this panorama.
    2103SW-C0839-41-Pano.jpg
  • Downstream of Blue Spring, the Little Colorado River glows brilliant turquoise due to suspension of minerals including calcium carbonate, seen on Day 4 of 16 days rafting 226 miles down the Colorado River in Grand Canyon National Park, Arizona, USA. Marble Canyon runs from Lees Ferry at River Mile 0 to the confluence with the Little Colorado River at Mile 62, which marks the beginning of the Grand Canyon. Although John Wesley Powell knew that no marble was found here when he named Marble Canyon, he thought the polished limestone looked like marble. In his words, "The limestone of the canyon is often polished, and makes a beautiful marble. Sometimes the rocks are of many colors – white, gray, pink, and purple, with saffron tints."
    2103SW-F50.jpg
  • Downstream of Blue Spring, the Little Colorado River glows brilliant turquoise due to suspension of minerals including calcium carbonate, seen on Day 4 of 16 days rafting 226 miles down the Colorado River in Grand Canyon National Park, Arizona, USA. Marble Canyon runs from Lees Ferry at River Mile 0 to the confluence with the Little Colorado River at Mile 62, which marks the beginning of the Grand Canyon. Although John Wesley Powell knew that no marble was found here when he named Marble Canyon, he thought the polished limestone looked like marble. In his words, "The limestone of the canyon is often polished, and makes a beautiful marble. Sometimes the rocks are of many colors – white, gray, pink, and purple, with saffron tints."
    2103SW-F39.jpg
  • Downstream of Blue Spring, the Little Colorado River glows brilliant turquoise due to suspension of minerals including calcium carbonate, seen on Day 4 of 16 days rafting 226 miles down the Colorado River in Grand Canyon National Park, Arizona, USA. Marble Canyon runs from Lees Ferry at River Mile 0 to the confluence with the Little Colorado River at Mile 62, which marks the beginning of the Grand Canyon. Although John Wesley Powell knew that no marble was found here when he named Marble Canyon, he thought the polished limestone looked like marble. In his words, "The limestone of the canyon is often polished, and makes a beautiful marble. Sometimes the rocks are of many colors – white, gray, pink, and purple, with saffron tints." Multiple overlapping photos were stitched to make this panorama.
    2103SW-F09-14-Pano.jpg
  • Downstream of Blue Spring, the Little Colorado River glows brilliant turquoise due to suspension of minerals including calcium carbonate, seen on Day 4 of 16 days rafting 226 miles down the Colorado River in Grand Canyon National Park, Arizona, USA. Marble Canyon runs from Lees Ferry at River Mile 0 to the confluence with the Little Colorado River at Mile 62, which marks the beginning of the Grand Canyon. Although John Wesley Powell knew that no marble was found here when he named Marble Canyon, he thought the polished limestone looked like marble. In his words, "The limestone of the canyon is often polished, and makes a beautiful marble. Sometimes the rocks are of many colors – white, gray, pink, and purple, with saffron tints."
    2103SW-F08.jpg
  • Redwall Cavern at River Mile 33.3, seen while rafting through Marble Canyon on day 2 of 16 days boating 226 miles down the Colorado River in Grand Canyon National Park, Arizona, USA. Marble Canyon runs from Lees Ferry at River Mile 0 to the confluence with the Little Colorado River at Mile 62, which marks the beginning of the Grand Canyon. Although John Wesley Powell knew that no marble was found here when he named Marble Canyon, he thought the polished limestone looked like marble. In his words, "The limestone of the canyon is often polished, and makes a beautiful marble. Sometimes the rocks are of many colors – white, gray, pink, and purple, with saffron tints." Multiple overlapping photos were stitched to make this panorama.
    2103SW-B0029-33-Pano.jpg
  • Redwall Cavern at River Mile 33.3, seen while rafting through Marble Canyon on day 2 of 16 days boating 226 miles down the Colorado River in Grand Canyon National Park, Arizona, USA. Marble Canyon runs from Lees Ferry at River Mile 0 to the confluence with the Little Colorado River at Mile 62, which marks the beginning of the Grand Canyon. Although John Wesley Powell knew that no marble was found here when he named Marble Canyon, he thought the polished limestone looked like marble. In his words, "The limestone of the canyon is often polished, and makes a beautiful marble. Sometimes the rocks are of many colors – white, gray, pink, and purple, with saffron tints." Multiple overlapping photos were stitched to make this panorama.
    2103SW-B0024-25-Pano.jpg
  • Colorado River views from the trail above Deer Creek Falls in Grand Canyon National Park, Arizona, USA. Starting at River Mile 134.5, a portion of our party disembarked our rafts for a hike one way up beautiful Tapeats Creek Trail to the wondrous Thunder Spring and River, across remote Surprise Valley Trail, then down Deer Creek Trail to meet others of our group at The Patio and Deer Creek Falls at River Mile 136.9. This scenic one-way traverse was 8 miles with 2300 feet gain (measured by my smartphone GPS app). Day 10 of 16 days rafting 226 miles down the Colorado River in Grand Canyon National Park, Arizona, USA.
    2103SW-B0986.jpg
  • The SS Klondike No. 2 sternwheeler, launched at Whitehorse in 1937, was the largest vessel ever to sail the Canadian portion of the Yukon River. The SS Klondike No 2 moved silver-lead ore, freight, and passengers primarily between Whitehorse and Dawson, until retirement in 1955 ended the era of commercial steamboats in the Yukon. It's now a National Historic Site in Whitehorse, the capital and largest city of Yukon, Canada. Whitehorse was incorporated in 1950 at kilometer 1426 (Historic Mile 918) on the Alaska Highway. Whitehorse lies on the Yukon River, which originates in British Columbia, is light-colored from glacial runoff, and meets the Bering Sea in Alaska. Whitehorse was named after the White Horse Rapids for their resemblance to the mane of a white horse, near Miles Canyon, before the river was dammed. The name Yukon comes from a Gwich'in phrase meaning white water river. Although historically and popularly called "Yukon Territory", the territory is now officially called "Yukon" (after the federal government's Yukon Act in 2002).
    1906AKH-1107.jpg
  • The SS Klondike No. 2 sternwheeler, launched at Whitehorse in 1937, was the largest vessel ever to sail the Canadian portion of the Yukon River. The SS Klondike No 2 moved silver-lead ore, freight, and passengers primarily between Whitehorse and Dawson, until retirement in 1955 ended the era of commercial steamboats in the Yukon. It's now a National Historic Site in Whitehorse, the capital and largest city of Yukon, Canada. Whitehorse was incorporated in 1950 at kilometer 1426 (Historic Mile 918) on the Alaska Highway. Whitehorse lies on the Yukon River, which originates in British Columbia, is light-colored from glacial runoff, and meets the Bering Sea in Alaska. Whitehorse was named after the White Horse Rapids for their resemblance to the mane of a white horse, near Miles Canyon, before the river was dammed. The name Yukon comes from a Gwich'in phrase meaning white water river. Although historically and popularly called "Yukon Territory", the territory is now officially called "Yukon" (after the federal government's Yukon Act in 2002).
    1906AKH-1066.jpg
  • River rafters. Goosenecks State Park overlooks a deep meander of the San Juan River near Mexican Hat, Utah, USA. Millions of years ago, the Monument Upwarp forced the river to carve meanders over 1,000 feet deep (300 m) as the surrounding landscape slowly rose in elevation.
    1804SW-1078.jpg
  • After 5 miles, the Imnaha River Trail ends at the confluence with the Snake River in Hells Canyon National Recreation Area, Wallowa-Whitman National Forest, north of Imnaha village, Oregon, USA. The entire river is designated Wild and Scenic. This panorama was stitched from 12 overlapping photos.
    1405OR-203-214pan.jpg
  • Multnomah Falls upper tier (542 feet plunge) blasts mist onto a mossy boulder in Columbia River Gorge National Scenic Area, located on Historic Columbia River Highway and Interstate 84, Oregon, USA.
    10GOR-0340.jpg
  • Multnomah Falls upper tier plunges 542 feet in Columbia River Gorge National Scenic Area, on Historic Columbia River Highway and Interstate 84, Oregon, USA. Panorama stitched from 2 images.
    10GOR-0319-20pan_Upper-Multnomah-Fal...jpg
  • Multnomah Falls upper tier plunges 542 feet in Columbia River Gorge National Scenic Area, on Historic Columbia River Highway and Interstate 84, Oregon, USA.
    10GOR-0316.jpg
  • Moss and lichen smothers trees in Columbia River Gorge National Scenic Area, on Historic Columbia River Highway and Interstate 84, Oregon, USA.
    10GOR-0314.jpg
  • Multnomah Falls plunges 620 feet in two tiers in Columbia River Gorge National Scenic Area, adjacent to Interstate 84 and Historic Columbia River Highway, in Oregon, USA. A foot trail leads to Benson Footbridge, a 45-foot (14 m) long footbridge that allows visitors to cross 105 feet (32 m) above the lower cascade. Panorama stitched from 6 overlapping images.
    10GOR-0307-312pan_Multnomah-Falls.jpg
  • Multnomah Falls plunges 620 feet in two tiers in Columbia River Gorge National Scenic Area, adjacent to Interstate 84 and Historic Columbia River Highway, in Oregon, USA. A foot trail leads to Benson Footbridge, a 45-foot (14 m) long footbridge that allows visitors to cross 105 feet (32 m) above the lower cascade.
    10GOR-0306.jpg
  • Multnomah Falls plunges 620 feet in two tiers in Columbia River Gorge National Scenic Area, adjacent to Interstate 84 and Historic Columbia River Highway, in Oregon, USA.
    10GOR-0302.jpg
  • Horsetail Falls on Horsetail Creek, along Historic Columbia River Highway, Columbia River Gorge National Scenic Area, Oregon, USA.
    10GOR-0209.jpg
  • Beacon Rock, Columbia River Gorge National Scenic Area, Washington (seen from the Oregon side of the river), USA. Beacon Rock is a striking monolith composed of basalt, 848 feet high (258 meters). In 1805, Lewis and Clark originally referred to it as Beaten Rock, later as Beacon Rock. They found that Beacon Rock marked the eastern-most tidal influence in the Columbia. It was later known as Castle Rock until 1915 when its name changed back to Beacon Rock.
    10GOR-0119.jpg
  • Beacon Rock, Columbia River Gorge National Scenic Area, Washington (seen from the Oregon side of the river), USA. Beacon Rock is a striking monolith composed of basalt, 848 feet high (258 meters). In 1805, Lewis and Clark originally referred to it as Beaten Rock, later as Beacon Rock. They found that Beacon Rock marked the eastern-most tidal influence in the Columbia. It was later known as Castle Rock until 1915 when its name changed back to Beacon Rock.
    10GOR-0092.jpg
  • Horsetail Falls on Horsetail Creek, along Historic Columbia River Highway, Columbia River Gorge National Scenic Area, Oregon, USA.
    10GOR-0088.jpg
  • Marble Canyon reflects in Colorado River on Day 2 of 16 rafting down Grand Canyon National Park, Arizona, USA. Marble Canyon runs from Lees Ferry at River Mile 0 to the confluence with the Little Colorado River at Mile 62, which marks the beginning of the Grand Canyon. Although John Wesley Powell knew that no marble was found here when he named Marble Canyon, he thought the polished limestone looked like marble. In his words, "The limestone of the canyon is often polished, and makes a beautiful marble. Sometimes the rocks are of many colors – white, gray, pink, and purple, with saffron tints."
    2103SW-C0611.jpg
  • Rafting through Marble Canyon on day 2 of 16 days boating 226 miles down the Colorado River in Grand Canyon National Park, Arizona, USA. Marble Canyon runs from Lees Ferry at River Mile 0 to the confluence with the Little Colorado River at Mile 62, which marks the beginning of the Grand Canyon. Although John Wesley Powell knew that no marble was found here when he named Marble Canyon, he thought the polished limestone looked like marble. In his words, "The limestone of the canyon is often polished, and makes a beautiful marble. Sometimes the rocks are of many colors – white, gray, pink, and purple, with saffron tints."
    2103SW-C0537.jpg
  • Rafting through Marble Canyon on day 2 of 16 days boating 226 miles down the Colorado River in Grand Canyon National Park, Arizona, USA. Marble Canyon runs from Lees Ferry at River Mile 0 to the confluence with the Little Colorado River at Mile 62, which marks the beginning of the Grand Canyon. Although John Wesley Powell knew that no marble was found here when he named Marble Canyon, he thought the polished limestone looked like marble. In his words, "The limestone of the canyon is often polished, and makes a beautiful marble. Sometimes the rocks are of many colors – white, gray, pink, and purple, with saffron tints." For this photo’s licensing options, please inquire at PhotoSeek.com.
    2103SW-C0521.jpg
  • Rafting through Marble Canyon on day 2 of 16 days boating 226 miles down the Colorado River in Grand Canyon National Park, Arizona, USA. Marble Canyon runs from Lees Ferry at River Mile 0 to the confluence with the Little Colorado River at Mile 62, which marks the beginning of the Grand Canyon. Although John Wesley Powell knew that no marble was found here when he named Marble Canyon, he thought the polished limestone looked like marble. In his words, "The limestone of the canyon is often polished, and makes a beautiful marble. Sometimes the rocks are of many colors – white, gray, pink, and purple, with saffron tints."
    2103SW-C0463.jpg
  • Colorado River seen from Old Navajo Bridge at River Mile 4.5, Grand Canyon National Park, Arizona, USA. The original Navajo Bridge was built in 1929. The new bridge was completed in 1995.
    2103SW-C0007.jpg
  • Vulcan's Anvil (or Vulcan's Forge) was named after Vulcan, the Roman God of fire and metalworking. Created by huge lava flows that poured through the canyon here 400,000 years ago, this volcanic neck juts out of the river 50 to 60 feet high and reminds river runners that Lava Falls is coming soon. Day 13 of 16 days rafting 226 miles down the Colorado River in Grand Canyon National Park, Arizona, USA.
    2103SW-C2414.jpg
  • Paddlewheel graveyard, Yukon River Campground, Dawson City, Yukon, Canada. Explore the ruins of seven historic paddlewheel boats discarded in the woods along the banks of the Yukon River. Directions: On foot or auto, take the free George Black Ferry to West Dawson and the Top of the World Highway. Turn right into Yukon River campground and park at its northern end. Walk through the yellow gate, turn left, and walk downstream a few minutes to the Paddlewheel graveyard. Please respect this site, which is protected under the Yukon Historic Resources Act. Dawson City was the center of the Klondike Gold Rush (1896–99), after which population rapidly declined, in Yukon, Canada. Dawson City shrank further during World War II after the Alaska Highway bypassed it 300 miles (480 km) to the south using Whitehorse as a hub. In 1953, Whitehorse replaced Dawson City as Yukon Territory's capital. Dawson City's population dropped to 600–900 through the 1960s-1970s, but later increased as high gold prices made modern placer mining operations profitable and tourism was promoted. In Yukon, the Klondike Highway is marked as Yukon Highway 2 to Dawson City.
    1906AKH-1363.jpg
  • Paddlewheel graveyard, Yukon River Campground, Dawson City, Yukon, Canada. Explore the ruins of seven historic paddlewheel boats discarded in the woods along the banks of the Yukon River. Directions: On foot or auto, take the free George Black Ferry to West Dawson and the Top of the World Highway. Turn right into Yukon River campground and park at its northern end. Walk through the yellow gate, turn left, and walk downstream a few minutes to the Paddlewheel graveyard. Please respect this site, which is protected under the Yukon Historic Resources Act. Dawson City was the center of the Klondike Gold Rush (1896–99), after which population rapidly declined, in Yukon, Canada. Dawson City shrank further during World War II after the Alaska Highway bypassed it 300 miles (480 km) to the south using Whitehorse as a hub. In 1953, Whitehorse replaced Dawson City as Yukon Territory's capital. Dawson City's population dropped to 600–900 through the 1960s-1970s, but later increased as high gold prices made modern placer mining operations profitable and tourism was promoted. In Yukon, the Klondike Highway is marked as Yukon Highway 2 to Dawson City.
    1906AKH-1388.jpg
  • The Colorado River, seen from Hopi Point, in Grand Canyon National Park, Arizona, USA. Starting at least 5 to 17 million years ago, erosion by the Colorado River has exposed a column of distinctive rock layers, which date back nearly two billion years at the base of Grand Canyon. While the Colorado Plateau was uplifted by tectonic forces, the Colorado River and tributaries carved Grand Canyon over a mile deep (6000 feet), 277 miles  long and up to 18 miles wide.
    1804SW-1744.jpg
  • Sunset colors clouds over the Snake River, at Farewell Bend State Recreation Area in Baker County, Oregon, USA. Farewell Bend was the last stop on the Oregon Trail along the Snake River where travelers could rest and water and graze their animals before the trail turned north through more rugged country to follow the Burnt River. The park is 25 miles northwest of Ontario.
    170921_184316_Farewell-Bend-SRA.jpg
  • Overlook at Tea Table Rock picnic area. In Letchworth State Park, renowned as the "Grand Canyon of the East," the Genesee River roars northeast through a gorge over three major waterfalls between cliffs as high as 550 feet, surrounded by diverse forests which turn bright fall colors in the last three weeks of October. The large park stretches 17 miles between Portageville and Mount Morris in the state of New York, USA. Drive or hike to many scenic viewpoints along the west side of the gorge. The best walk is along Gorge Trail #1 above Portage Canyon from Lower Genesee Falls (70 ft high), to Inspiration Point, to Middle Genesee Falls (tallest, 107 ft), to Upper Genesee Falls (70 ft high). High above Upper Falls is the railroad trestle of Portageville Bridge, built in 1875, to be replaced 2015-2016. Geologic history: in the Devonian Period (360 to 420 million years ago), sediments from the ancestral Appalachian mountains eroded into an ancient inland sea and became the bedrock (mostly shales with some layers of limestone and sandstone plus marine fossils) now exposed in the gorge. Genesee River Gorge is very young, as it was cut after the last continental glacier diverted the river only 10,000 years ago. The native Seneca people were largely forced out after the American Revolutionary War, as they had been allies of the defeated British. Letchworth's huge campground has 270 generously-spaced electric sites. The panorama was stitched from 17 overlapping photos.
    1410NY-683-699pan_Letchworth-gorge.jpg
  • A log was left suspended high in Mahorcic Cave (Mahorciceva jama) by the Reka River in Slovenia. The wonderful self-guided Part 2 of Skocjan Caves walking tour follows the mysterious Reka River from Mala Dolina (Small Doline, a sinkhole) through Mahorcic Cave (Mahorciceva jama) upstream underground for 350 meters over exciting bridges and dimly lit passages. From a large-scale karst drainage, the Reka River has carved and dissolved dramatic subterranean passages through limestone over several million years. Karst topography is a geologic formation of dissolving bedrock. Our word for "karst" likely evolved from the Slovene noun kras and earlier proper noun Grast, referring to Slovenia's Karst Plateau. Visit Skocjan Caves (Skocjanske jame) Regional Park near Divaca, in the Littoral region of the Republic of Slovenia, Europe. UNESCO has honored Skocjan Caves as a World Heritage Site.
    13SLO-2142_Skocjan-Caves-Slovenia.jpg
  • Upper Mesa Falls plunges 114 feet over a 300 foot wide cliff face along Henrys Fork (also known as North Fork, a tributary of the Snake River) in Caribou-Targhee National Forest in southeastern Idaho, USA. Turn off Highway 47 on the Mesa Falls Scenic Byway about 15 miles north of the city of Ashton. On sunny days from about 9 am until 1 pm, the mist from powerful Upper Mesa Falls creates a beautiful rainbow. The falls flow over Mesa Falls Tuff, which formed 1.3 million years ago. A cycle of rhyolitic volcanism from the Henrys Fork caldera depositing a thick layer of rock and ash which compressed and hardened over time. Between 200,000 and 600,000 years ago, the river eroded a wide canyon which was subsequently partly filled with basalt lava flows. The Henrys Fork of the Snake River carved a channel through the basalt to create today's inner canyon.
    04ID-0040.jpg
  • The "Bear's Head" (Medvedova glava) chock stone hangs wedged in verdant Zadlascica river canyon, in the Tolmin gorges (Tolminska korita), Triglav National Park, Julian Alps, Slovenia, Europe. Tolmin gorges (Tolminska korita) are among the longest and deepest gorges in Slovenia and are the lowest point (180 meters elevation) in Triglav National Park (TNP). Walk a trail to the confluence of two gorges (Tolminka and Zadlascica rivers), then along Zadlascica river canyon (locally called Skakalce, "the jumps") up to a chock stone called the "Bear's Head." Walk onwards to the scenic Devil's Bridge (Hudicev most, built 1907), which carries Tolmin-Cadrg road sixty meters above Tolminka River, then loop on foot back to the parking lot at the Triglavski narodni park (TNP) sign, near Zatolmin, Slovenia, Europe.
    11SLO-9131-35pan_Bears-Head_Tolmin-G...jpg
  • Latourell Creek plunges 249 feet over Latourell Falls in a verdant mossy temperate rain forest in Columbia River Gorge National Scenic Area, Oregon, USA.
    10GOR-0283.jpg
  • Walk two routes 4 or 5 miles to Triple Falls (~130-foot plunge) in Oneonta Gorge, in Columbia River Gorge National Scenic Area, Oregon, USA.
    10GOR-0156.jpg
  • From atop Sauk Mountain can be seen the North Cascades from Mount Baker southwards to Glacier Peak and Three Fingers. (Panorama stitched from 11 images). On the right, far below the hikers is the Sauk River at its confluence with the Skagit River, Washington, USA.
    05SAU_52-62pan_Sauk-Mt_Baker-Glacier...jpg
  • Arizona Raft Adventures (AZRA) trip leader Lorna Corson rows under Bright Angel Bridge (aka Silver Bridge). Built in the late 1960s, the Silver Bridge supports hikers and the Transcanyon Water Distribution Pipeline across the Colorado River, connecting the Bright Angel Trail from the South Rim to Phantom Ranch and the North Rim. Hikers only (no mules) may cross this narrow suspension bridge. Five-hundred-thousand gallons of water a day are piped from Roaring Springs near the North Rim down Bright Angel Canyon through Phantom Ranch, across the Colorado River, and then pumped up to provide almost all the water to the South Rim tourist area. Day 6 of 16 days rafting 226 miles down the Colorado River in Grand Canyon National Park, Arizona, USA. For this photo’s licensing options, please inquire at PhotoSeek.com. .
    2103SW-C1320.jpg
  • Arizona Raft Adventures (AZRA) dory boat at Tatahatso Wash Camp (Mile 37.9) on the Colorado River in Marble Canyon in Grand Canyon National Park, Arizona, USA. Marble Canyon runs from Lees Ferry at River Mile 0 to the confluence with the Little Colorado River at Mile 62, which marks the beginning of the Grand Canyon. Although John Wesley Powell knew that no marble was found here when he named Marble Canyon, he thought the polished limestone looked like marble. In his words, "The limestone of the canyon is often polished, and makes a beautiful marble. Sometimes the rocks are of many colors – white, gray, pink, and purple, with saffron tints." For this photo’s licensing options, please inquire at PhotoSeek.com. .
    2103SW-B0046.jpg
  • Rafting through Marble Canyon on day 2 of 16 days boating 226 miles down the Colorado River in Grand Canyon National Park, Arizona, USA. Marble Canyon runs from Lees Ferry at River Mile 0 to the confluence with the Little Colorado River at Mile 62, which marks the beginning of the Grand Canyon. Although John Wesley Powell knew that no marble was found here when he named Marble Canyon, he thought the polished limestone looked like marble. In his words, "The limestone of the canyon is often polished, and makes a beautiful marble. Sometimes the rocks are of many colors – white, gray, pink, and purple, with saffron tints."
    2103SW-C0487.jpg
  • Take out our rafts at Diamond Creek at Colorado River Mile 225.9 on the Hualapai Indian Reservation, on the last of 16 days rafting 226 miles down the Colorado River through Grand Canyon National Park, Arizona, USA.
    2103SW-D0182.jpg
  • The Colorado River, seen from Hopi Point, in Grand Canyon National Park, Arizona, USA. Starting at least 5 to 17 million years ago, erosion by the Colorado River has exposed a column of distinctive rock layers, which date back nearly two billion years at the base of Grand Canyon. While the Colorado Plateau was uplifted by tectonic forces, the Colorado River and tributaries carved Grand Canyon over a mile deep (6000 feet), 277 miles  long and up to 18 miles wide.
    1804SW-1743.jpg
  • Phantom Ranch and the Colorado River, seen with a telephoto lens from Yavapai Point on the South Rim of Grand Canyon National Park, Arizona, USA. Starting at least 5 to 17 million years ago, erosion by the Colorado River has exposed a column of distinctive rock layers, which date back nearly two billion years at the base of Grand Canyon. While the Colorado Plateau was uplifted by tectonic forces, the Colorado River and tributaries carved Grand Canyon over a mile deep (6000 feet), 277 miles  long and up to 18 miles wide.
    1804SW-1656.jpg
  • Ivelet bridge, River Swale, Swaledale. We followed the River Swale via meadows, woods, and villages, on our walk from Keld to Reeth in Yorkshire Dales National Park, England, United Kingdom, Europe. England Coast to Coast hike day 8 of 14. [This image, commissioned by Wilderness Travel, is not available to any other agency providing group travel in the UK, but may otherwise be licensable from Tom Dempsey – please inquire at PhotoSeek.com.]
    17UK-3145_England.jpg
  • The icy Bernina Range rises above Ova da Roseg river valley, near Pontresina, Switzerland, in the Bernina Alps, Europe. Tschierva Glacier flows from Piz Roseg (3937 m on left). At right (west), Roseg Glacier flows from Piz Glüschaint (3594 m). Val Roseg is in the Swiss canton of Graubünden (or Grisons / Grigioni / Grischun); the lower Roseg Valley is in Pontresina, whereas the upper valley is in an exclave of Samedan Municipality. Hike from Pontresina up Roseg Valley to Fuorcla Surlej for stunning views of Piz Bernina and Piz Roseg, finishing at Corvatsch Mittelstation Murtel cable car. Walking 14 km, we went up 1100 meters and down 150 m. Optionally shorten the hike to an easy 4 km via round trip lift. The Swiss valley of Engadine translates as the "garden of the En (or Inn) River" (Engadin in German, Engiadina in Romansh, Engadina in Italian), and is part of the Danube basin.
    16SWI-9063.jpg
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