SAN FRANCISCO CREEK
SAN FRANCISCO CREEK. San Francisco Creek rises one mile west of Stillwell Mountain and three miles south of U.S. Highway 385 in northeastern Brewster County (at 30°18' N, 103°05' W) and runs southeast for eighty-seven miles to its mouth on the Rio Grande, just east of the Terrell county line (at 29°53' N, 102°19' W). San Francisco Creek is intermittent in its upper reaches, except for an eleven-mile stretch beginning just west of Hell's Half Acre, where it flows perennially. The creek is dry for the last half of its length. The upper reaches of San Francisco Creek run through steeply to moderately sloping hills surfaced by shallow, stony clay and sandy loam that supports oak, mesquite, and grasses. In its lower reaches flat terrain with local shallow depressions or deep, dense dissections is surfaced by shallow, stony clay and sandy loams that support water-tolerant hardwoods, conifers, and grasses, oak, juniper, and some mesquite.