The town of Crescent is located in Pottawattamie County, about eight miles north of Council Bluffs. Rock exposures at the foot of the bluffs bordering the valley of Missouri River southwest of Crescent have long been known to geologists, and are mentioned and described in detail by Udden.
Proceedings of the Iowa Academy of Science
©1936 Iowa Academy of Science, Inc.
Wood, L. W.
"Pennsylvanian Section at Crescent, Iowa,"
Proceedings of the Iowa Academy of Science, 43(1), 235-237.
Available at: https://scholarworks.uni.edu/pias/vol43/iss1/56