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December 11, 2011

McAllister Glacier Retreat, North Cascades

McAllister Glacier is one of the main headwaters glaciers of Thunder Creek feeding into the Skagit River in the North Cascades of Washington. The North Cascade Glacier Climate Project has examined North Cascade glaciers each summer for 28 years and found all 47 that we visit are retreating and six have disappeared. McAllister Glacier is not a glacier we access. This glacier advanced during the 1950-1979 period. This post examines …