BARREL CANYON. Barrel Canyon, through which runs an intermittent stream, rises a mile east of Bullis Gap in eastern Brewster County (at 29°49' N, 102°35' W) and extends northeast for fourteen miles to its mouth on San Francisco Creek, five miles east of the junction of the Brewster-Terrell county line and the Rio Grande (at 29°53' N, 102°24' W). The terrain is flat with local shallow depressions and some deep, dense dissection. Soils in the area are clay and sandy loams and shallow, stony soils; they support water-tolerant hardwoods, conifers, and grasses, as well as oak, juniper, and some mesquite.
The following, adapted from the Chicago Manual of Style, 15th edition, is the preferred citation for this article."BARREL CANYON," Handbook of Texas Online (http://www.tshaonline.org/handbook/online/articles/rkb02), accessed June 20, 2013. Published by the Texas State Historical Association.