The most significant features that have been revealed by a study of the Pleistocene deposits in many deep cuts made recently between Manilla in Crawford County and Coon Rapids in Carroll County, by the Chicago, Milwaukee and St. Paul Railway Company, may be summarized as follows.
Proceedings of the Iowa Academy of Science
©1917 Iowa Academy of Science, Inc.
Kay, George F.
"Pleistocene Deposits between Manilla in Crawford County and Coon Rapids in Carroll County, Iowa,"
Proceedings of the Iowa Academy of Science, 24(1), 99-100.
Available at: https://scholarworks.uni.edu/pias/vol24/iss1/17