"Medial moraine" A ridge of accumulated glacial debris formed when two glaciers meet and the debris on the edges of
the adjacent valley sides join and are carried on top of the enlarged glacier. As the glacier melts or retreats, debris is deposited and a ridge down the middle of the valley floor is created.
Viewed from our float plane from Wasilla to Talkeetna, AK.
July 4, 2010
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