Arroyo Salado
Arroyo Salado, also known as Salado Creek, rises eight miles southeast of Nuestra Señora de los Dolores Hacienda in northwest Zapata County (at 27°11' N, 99°18' W) and runs southwest for ten miles to its mouth on the Rio Grande, six miles north of San Ygnacio (at 27°08' N, 99°26' W). The stream is dammed at two points near its origin. It traverses flat terrain with local shallow depressions and prairies, surfaced by clay and sandy loams that support water-tolerant hardwoods, mesquite, grasses, and chaparral.