CANADIAN BREAKS. The Canadian Breaks is unique valley in Oldham County that dramatically interrupts the Pliocene surface of the High Plains. The breaks were formed where the Canadian River cut through the Caprock and Triassic sandstone beneath into Permian sandy clay and andydrite.
Robert A. Sheldon, Roadside Geology of Texas (Missoula, Montana: Mountain Press, 1979).
The following, adapted from the Chicago Manual of Style, 15th edition, is the preferred citation for this article."CANADIAN BREAKS," Handbook of Texas Online (http://www.tshaonline.org/handbook/online/articles/ryc06), accessed May 25, 2013. Published by the Texas State Historical Association.