Calvin Photographic Collection [read review]
Exhibits photos taken by Samuel Calvin in the late 19th century of geological features and buildings throughout the state of Iowa.
www.uiowa.edu/~calvin
Geoarchaeology in Iowa
Discusses the geoarchaeology of Iowa's stream valleys and uplands.
www.uiowa.edu/~osa/geo/geo.htm
Iowa Geological Survey Bureau
Collects and manages information on the geology and water resources of Iowa.
www.igsb.uiowa.edu
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