Arroyo Calero
General
Arroyo Calero begins a quarter mile north of Interstate Highway 10 and two miles south of the Malone Mountains in southwestern Hudspeth County (at 31°12' N, 105°35' W) and runs southwest for seven miles to its mouth on Fort Quitman Lake, four miles southeast of Esperanza and one mile north of the Rio Grande (at 31°08' N, 105°39' W). It traverses steeply to gently sloping terrain surfaced by variable soils that support scrub brush and sparse grasses. Calero, Spanish for "calcareous," presumably refers to the limestone found in the area.
