Iowa Heritage Digital Collections
State Library of Iowa

Browse Items (484 total)

Kansan gumbotil with Illinoian till above on Miller Farm, Washington Township, Iowa, July 10, 1925
Nebraskan till and gumbotil, Clay Township, Iowa, June 28, 1925
Gravels in till, north of Afton, Iowa, 1925
Piled up outwash of gravels, Calumet, Iowa, July 7, 1925
Loess and  Iowan till, Loveland, Iowa, 1925
Pebble band in Iowan till, Liberty Township, Iowa, July 4, 1925
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