Calvin Image Database Search

Geology of Ringgold Co., Iowa


Nebraskan gumbotil with till above (Kansan) and till below, concretions below and pebbles above mark the gumbotil

Photograph details:
Location: U.S., Iowa, Ringgold Co.; Poe Twp., looking north just east of Sections 2, 3, 10, 11.

Geologic Age: Pleistocene, Nebraskan gumbotil.
Photographed by: E.T. Apfel, July 25, 1924. Lantern Slide No. 5680.
Photograph No. 900


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Cracked gumbotil, and contact with loess above

Photograph details:
Location: U.S., Iowa, Ringgold Co.; Monroe and 1 Athens Twp., middle of east half of line between Sections 36.

Geologic Age: Pleistocene, gumbotil.
Photographed by: Earl T. Apfel, July 25, 1924. Lantern Slide No. 1093.
Photograph No. 923


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Any additional plates from the Calvin Collection are listed below.
These will be added to the database in due course, but if you are interested in seeing them in advance, please contact Tiffany Adrain.



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