Mountains at Glacier Bay National Park, Alaska

Rugged mountains with glaciers at the top, covered in forest lower down.

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Taken on Aug. 13, 2010

This photo from Glacier Bay National Park in Alaska shows the vegetation transition in the Pacific Coastal Mountains, from evergreen rainforest at lower elevations to open coniferous forest and alpine meadows at higher elevations, with barren rock, glaciers, and ice fields at the top.