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https://www.usgs.gov/media/images/george-bird-grinnell-and-hiking-party-grinnell-glacier-gnp
George Bird Grinnell and hiking party on Grinnell Glacier, GNP. | U.S. Geological Survey
George Bird Grinnell and hiking party on Grinnell Glacier, Glacier National Park, MT (no date).
george bird grinnell
hiking
party
glacier
gnp