State Library of Iowa
Copyright and Ownership
Welcome to the Iowa Heritage Digital Collections
Collection Development Policy
Digitization Resources for participants in the Iowa Heritage Digital Collections
Steps to Participation
Collection: Calvin Geological Photographs
Browse Items (748 total) for Calvin Geological Photographs
Browse by Tag
Kansan gumbotil, soil, and Iowan till, Wayne Township, Iowa, July 8, 1924
Located in Wayne Twp. near middle of north line of Section 30 looking east.
Kansan Loess topography near Kansan-Iowan border, Oakdale, Iowa, late 1890s or early 1900s
Kansan section showing Peorian loess on Kansan gumbotil, oxidized and leached till, ox, and unleached till, Oregon Township, Iowa, August 1933
Located in Oregon Twp., along Primary 161, at top of hill, South of Long Creek, NW 1/4, section 34, showing roadway.
Kansan till and gumbotil with Illinoian till above on the back of Gus Miller's farm, Washington Township, June 21, 1924
Located in Washington Twp. southeast corner Section 28.
Kansan till, loess and Wisconsin till, Cass Township, Iowa, July 18, 1924
Located in Cass Twp. in the middle of north line of south Section 6 just west of Panora.
Kansan topography, showing mature topography developed by erosional loess overlying Kansan drift; Coralville, Iowa, late 1890s or early 1900s
Located at Coralville, north of, S.W. 1/4 Section 32, T. 80 W. R..
Kansan topography, Welton Township, Iowa, June 18, 1925
Located in the middle of section 4 of Welton Township.
Kansas plain drift in northeast Washington County, Iowa, late 1890s or early 1900s
Kilns and sheds of Iowa Pipe and Tile Works, Des Moines, Iowa, late 1890s or early 1900s
Knobby drift, Iowa, mid-1800s