The Alsek Ranges are the southeasternmost subdivision of the Saint Elias Mountains of the Pacific Cordillera.
Their western boundary is the Grand Pacific Glacier, beyond which is the Fairweather Range, another subdivision of the St. Elias Mountains.
All of the British Columbia portion of the Alsek Ranges are in the Tatshenshini-Alsek Park, but is also the location of the controversial Windy Craggy Mine proposal.
Most of the Alaskan portion between the Lynn Canal and Glacier Bay is part of Glacier Bay National Park and Preserve, and most of the Yukon portion is in Kluane National Park and Reserve.
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