PATTERSON CREEK. Patterson Creek rises seven miles northeast of Lometa in central Lampasas County (at 31°14' N, 98°17' W). Intermittent throughout, the spring-fed stream flows northeast for 9½ miles to its mouth on Simms Creek, 3½ miles southeast of Adamsville and 2½ miles east of U.S. Highway 281 (at 31°15' N, 98°10' W). Its course crosses an area of the Grand Prairies characterized by steep slopes and limestone benches. Soils in the area are shallow clay loams, and vegetation consists primarily of grasses and open stands and woods of oak, live oak, mesquite, and juniper.