COTTONWOOD ARROYO. Cottonwood Arroyo rises near U.S. Highway 385 in eastern Oldham County (at 35°24' N, 102°16' W) and runs northeast five miles to its mouth on the Canadian River, near the Potter county line downstream from Cal Farley's Boys Ranch (at 35°30' N, 102°11' W). It traverses moderately steep slopes, with locally high relief, surfaced by shallow to moderately deep silt loams, severely eroded in some places, that support mesquites and grasses. The Tascosa stock pens are on Farm Road 1061 south of the mouth of the arroyo.
The following, adapted from the Chicago Manual of Style, 15th edition, is the preferred citation for this article."COTTONWOOD ARROYO," Handbook of Texas Online (http://www.tshaonline.org/handbook/online/articles/rbcjp), accessed December 13, 2013. Published by the Texas State Historical Association.