The location of large glacial erratics of gneiss and granite in northeast Iowa, specifically in the tri-county area of Bremer-Fayette-Chickasaw counties is described. Discussed are the possible origin, size, location, detectability on survey photos, and some historical features. Action to provide for protection of these glacial relics against destruction is urged.
Proceedings of the Iowa Academy of Science
©1964 Iowa Academy of Science, Inc.
Engelke, Lester P.
"Large Glacial Erratics in Northeast Iowa,"
Proceedings of the Iowa Academy of Science, 71(1), 280-283.
Available at: https://scholarworks.uni.edu/pias/vol71/iss1/45