Arroyo del Tigre Grande
General Entry
Arroyo del Tigre Grande rises two miles west of the Starr county line in southeastern Zapata County (at 26°45' N, 99°03' W) and runs west for four miles to its mouth on the International Falcon Reservoir, a mile east of U.S. Highway 83 (at 26°45' N, 99°07' W). It crosses low-rolling to flat terrain with shallow to deep sandy and clay loams and loose sand that support scrub brush, grasses, and cacti.
