Choke Canyon Reservoir (25,733 acres) is located in Live Oak and McMullen counties. The WMA occupies all perimeter lands surrounding the lake excluding the state park units and dam operations.

Originally grassland, after the suppression of fire and the elimination of the buffalo, this region developed into the South Texas brush country of today. The climate includes long, hot summers, mild winters and erratic precipitation distribution. The average annual rainfall rate is 20-25 inches. Mesquite and associated thorny shrubs, such as catclaw acacia, huisache, blackbrush, granjeno, brasil, whitebrush, Texas persimmon, and prickly pear, account for much of the cover. Live oak, hackberry, and elm are the dominant tree species. Silver bluestem, buffelgrass, curly mesquite, and Arizona cottontop are the dominant grasses throughout the WMA. The topography is gently sloping to level and the soils range from loamy sand to heavy clay.

Texas Parks and Wildlife assumed responsibility of the property in 1981 for the care, operation, maintenance, and replacement of the recreation, fish and wildlife, and open space resources of the Choke Canyon Reservoir