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Collection: Calvin Geological Photographs
Browse Items (748 total) for Calvin Geological Photographs
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Kansan gumbotil with Illinoian till above on Miller Farm, Washington Township, Iowa, July 10, 1925
Located on Miller Farm in Washington Twp., SW 1/4, section 28 on the east side of the railroad tracks.
Frank Leverett, George F. Kay, and Paul MacClintock in the field, Lime Springs, Iowa, July 4, 1925
George F. Kay, Frank Leverett, and Paul MacClintock in the field at the Nebraskan gumbotil outcrop 4 miles northeast of Ricketts, Iowa, July 1925
Kansan gumbotil with Iowa topography in the background, Massilon Township, Iowa, July 18, 1925
Located in Massilon Twp. sections 30 and 31.
Topography of Iowan Drift area, Massilon Township, Iowa, July 18, 1925
Located in Massilon Twp., sections 29 and 32.
Iowan Drift area topography, Massilon Township, Iowa, July 18, 1925
Located in Massilon Twp. middle of section 33.
Wind-polished boulder west of Stanwood, Iowa, July 2, 1925
Kansan gumbotil with Iowan till above, Lincoln Township, Iowa, June 24, 1925
Located in Lincoln Twp. south of line between sections 34 and 35.
Kansan gumbotil, Lincoln Township, Iowa, June 21, 1925
Located in Lincoln Twp., SW 1/4, section 11.
Lightening flashes in a storm, Fairmont Park, Council Bluffs, Iowa, July 07, 1925
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