Two beds of limestone, each 12-13 feet thick, above the DeKalb, are exposed in Gordon's Hollow, one mile north of the tunnel through the Devil's Backbone in Pammel Park. South of the tunnel about a mile, a heel of limestone 12-13 feet thick, above the DeKalb, is exposed at intervals close to the top of the bluff. Exact correlation of these beds may show that all members of the Kansas City are present in the Backbone region.
Proceedings of the Iowa Academy of Science
©1933 Iowa Academy of Science, Inc.
"The Kansas City Formation in the Devil's Backbone Region, Madison County,"
Proceedings of the Iowa Academy of Science, 40(1), 134-134.
Available at: https://scholarworks.uni.edu/pias/vol40/iss1/65