The Devils River is a whitewater river in southwestern Texas, part of the Rio Grande drainage basin. It begins in northwest Sutton County, at (30°19′40″N100°56′31″W), where six watercourses come together, Dry Devils River, Granger Draw, House Draw, Jackson, Flat Rock Draw, and Rough Canyon. It flows southwest for 94 miles (151 km) through Val Verde County and empties into the northeastern shore of the Amistad Reservoir, an impoundment of the Rio Grande near Del Rio, Texas on the Texas/Mexico border, (29°27′33″N101°3′34″W), The discharge of the Devils River, as measured at IBWC gaging station 08-4494.00 near the river's mouth, averages 362 cubic feet per second (10.3 m³/s), with a maximum of 122,895 cubic feet per second (3,480 m³/s) and a minimum of 54 cubic feet per second (1.53 m³/s).