Iowa Heritage Digital Collections
State Library of Iowa

Browse Items (62140 total)

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