Ascend steep switchbacks up Knapsack Pass, a notch in Mother Mountain at the headwaters of Mist Park, in Mount Rainier National Park, Washington. Mount Rainier rises to 14,411 feet elevation. Caution: the unmaintained and unmarked Knapsack Pass trail exposes experienced hikers to slippery scree and steep snow (possibly icy), best hiked in late summer using a good GPS device, map, and trekking poles.
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