Iowa Heritage Digital Collections
State Library of Iowa

Browse Items (62067 total)

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
Iowan topography in northwest Iowa, Liberty Township, Iowa, 1925
Gravels and till, Cherokee Township, Iowa, 1925
Men on pile of boulders, Forest City township, Iowa, July 4, 1925
Boulder field in Iowan area, Williamstown, Iowa, June 19, 1926
Iowan Drift area topography, Hazel Green Township, Iowa, June 19, 1925
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