HACKBERRY CREEK (Briscoe County). Hackberry Creek rises in northern Briscoe County (at 34°44' N, 101°10' W) and runs southeast for nine miles to its mouth on the Prairie Dog Town Fork of the Red River (at 34°37' N, 101°01' W). Near the creek's headwaters is the site of the old Woodburn Camp, one of twelve winter camps on the JA Ranch.^qv The creek traverses an area of moderately steep slopes with locally high relief, surfaced by shallow to moderately deep silt loam soils that support mesquite and grasses.