Park naturalist C.A. Harwell on roches mountonnees showing fresh marks of glaciation one mile below present ice front. in the ice epoch the Lyell glacier extended 60 miles beyond this point.
Negative Number: RL_07020
U. S. National Park Service
Used on page 23 of the 1931 glacial survey report
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Wednesday, July 8, 2020 12:38:20 AM
Wednesday, July 8, 2020 12:38:20 AM
RL_07020.tif
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1031 Yosemite Historic Photo Collection
1031 Yosemite Historic Photo Collection
The digitizing of the historic photo collection was made possible through a grant from the Yosemite Conservancy