SWAUANO CREEK. Swauano Creek rises a mile southwest of Cookville in southeastern Titus County (at 33°11' N, 94°52' W). It is intermittent in its upper reaches and runs southeast for sixteen miles to its mouth on Big Cypress Creek, less than ½ mile from the Morris county line (at 32°59' N, 94°49' W). The soils surrounding the creek are loamy, and the area was originally heavily wooded with pines and various hardwoods. This area was the earliest settled portion of the county, and the first tract of land surveyed in the county was on Swauano Creek. In the 1970s the creek was dammed in its middle reaches to form Welch Reservoir, which is owned and operated by Southwestern Electric Power Company and maintained at a constant operating level by supplemental diversions from Lake O' the Pines.