ARROYO LEÓN. Arroyo León, an intermittent stream, rises at U.S. Highway 83 four miles southeast of Zapata in southwest Zapata County (at 26°51' N, 99°13' W) and runs south for two miles to its mouth on the International Falcon Reservoir, six miles southeast of Zapata (at 26°50' N, 99°13' W). The surrounding low-rolling to flat terrain is surfaced by sandy and clay loams that support scrub brush, grasses, and cacti.
The following, adapted from the Chicago Manual of Style, 15th edition, is the preferred citation for this article."ARROYO LEON," Handbook of Texas Online (http://www.tshaonline.org/handbook/online/articles/rba72), accessed May 25, 2013. Published by the Texas State Historical Association.