Lake Tawakoni State Park is a 376.3-acre park in Hunt County with 5.2 miles of shoreline along the south central shore of the main body of the reservoir. It was acquired in 1984. The park was authorized through a 50-year lease agreement with the Sabine River Authority, which operates the 36,700-surface-acre reservoir (at elevation 437.5 feet) and Iron Bridge Dam, located on the headwaters of the Sabine River.
The reservoir's primary purpose is to provide a municipal and industrial water supply for the surrounding communities and the City of Dallas. With a shoreline of approximately 200 miles, stretching through Hunt, Rains and Van Zandt counties, Lake Tawakoni provides water-oriented recreation for much of central northeast Texas. Prior to construction of the reservoir in 1960, the surrounding land area had been settled by ranchers and farmers following its occupation by "prehistoric Indians" and many historic Indian tribes for whom Lake Tawakoni is named. A master plan was developed to provide a balance between the recreational demands of the region and the preservation of natural resources.