Crowley's Ridge is a narrow, more or less interrupted elevation which extends from southeastern Missouri to Helena, Arkansas. Its slopes, especially on the eastern side, are frequently quite abrupt (see Plate V, figure 1), and it forms a striking topographic feature of this part of the Mississippi valley.
Proceedings of the Iowa Academy of Science
©1916 Iowa Academy of Science, Inc.
"The Loess of Crowley's Ridge, Arkansas,"
Proceedings of the Iowa Academy of Science, 23(1), 147-157.
Available at: https://scholarworks.uni.edu/pias/vol23/iss1/24