These are some pics looking to the west from Mount Audubon. Geologically speaking, the east faces of these mountains are much more rugged than the softer sloping north and west faces of the mountains because of the glaciers that have passed over these mountains several times, many, many years ago... And I quote... "The underlying rock of the Indian Peaks area is 80-90% Precambrian biotite gneiss formed approximately 1800 million years ago. The area has since been reshaped by at least six glacial sequences dating back 15,000 years.
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