Iowa Heritage Digital Collections
State Library of Iowa

Browse Items (748 total) for Calvin Geological Photographs

Chicago, Milwaukee, and St. Paul Railway Company railroad cut, Dedham, Iowa, June 6, 1910

Chicago, Milwaukee, and St. Paul Railway Company railroad cut, Dedham, Iowa, June 6, 1910

Chicago, Milwaukee and St. Paul Railroad cut, Manning, Iowa, June 8, 1915

Chicago, Milwaukee and St. Paul Railroad cut, Manning, Iowa, June 8, 1915

Located 1.5 miles West of Manning, North side, Warren Twp., section 18, N.W. quarter.
Chicago, Milwaukee and St. Paul Railroad cut, Manning, Iowa, June 10, 1915

Chicago, Milwaukee and St. Paul Railroad cut, Manning, Iowa, June 10, 1915

Located 1.5 miles East of Manning, Warren Twp., section 15, West 1/2.
Characteristic mantles of mature erosion topography on the Iowan Drift Plain, Lawler, Iowa, late 1890s or early 1900s

Characteristic mantles of mature erosion topography on the Iowan Drift Plain, Lawler, Iowa, late 1890s or early 1900s

Located 2 miles west of Lawler, Crane Creek, Stapleton Twp., T 95, N.R. 11, W section 7.
Loess mantled erosional topography

Loess mantled erosional topography

2 miles Northeast of Foose Lake, Deep Creek Twp., T. 83 N., R. 5 E., section 22
Chicago, Milwaukee and St. Paul Railroad cut, Rhodes, Iowa, July 01, 1914

Chicago, Milwaukee and St. Paul Railroad cut, Rhodes, Iowa, July 01, 1914

Located 1 mile East of Rhodes, Rhodes Twp., 78 N., R. 20 W. Section 10.
Branch of erosional lines on the dissected Kansan Drift Plain, Afton, Iowa, early 1890s or late 1900s

Branch of erosional lines on the dissected Kansan Drift Plain, Afton, Iowa, early 1890s or late 1900s

Located southwest of Afton, Iowa.
Dr. T.C. Chamberlin, The University of Iowa, late 1890s or early 1900s

Dr. T.C. Chamberlin, The University of Iowa, late 1890s or early 1900s

Dr. W. S. Williston, American Geologist, The University of Iowa, late 1890s or early 1900s

Dr. W. S. Williston, American Geologist, The University of Iowa, late 1890s or early 1900s

Pleistocene Fauna, horse teeth, Iowa, late 1890s or early 1900s

Pleistocene Fauna, horse teeth, Iowa, late 1890s or early 1900s

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