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Collection: Calvin Geological Photographs
Browse Items (748 total) for Calvin Geological Photographs
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Man standing next to The Sentinel, Newton Township, Iowa, late 1890s or early 1900s
Man standing near oblique bedding at Sugar Creek lime quarries, Sugar Creek, Iowa, late 1890s or early 1900s
Man standing in cut for the foundation of women's gymnasium shows Loess overlying Buchanan Gravels, The University of Iowa, late 1890s or early 1900s
Man standing by oblique bedding in Sugar Creek lime quarries, Sugar Creek, Iowa, late 1890s or early 1900s
Man standing at top of waterfall in Devil's Den, Iowa, late 1890's or early 1900s
"Devil's Den" located at Twp. 99, R. V, Section 19, N.W. gr., N.E. 1/4, N.E. corner.
Man next to large Wisconsin boulder near the mouth of Prairie Creek, Iowa, late 1890s or early 1900s
Man near cap rock and crevice, Iowa, late 1890s or early 1900s
Man in front of section of Maquoketa shales, Graf, Iowa, late 1890s or early 1900s
Located west of Graf.
Man in front of beds, Muscatine, Iowa, late 1890s or early 1900s
Man in Connell's Quarry, Iowa, early 1890s or late 1900s
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