SEMINOLE CANYON (TERRELL COUNTY)
SEMINOLE CANYON (Terrell County). Seminole Canyon begins 2½ miles south of U.S. Highway 90 in southwestern Terrell County (at 30°02' N, 102°20' W) and runs southeast for twelve miles to Sanderson Canyon three miles southwest of Indian Pothole (at 29°58' N, 102°12' W). Its course sharply dissects massive limestone and crosses wash deposits of sand, gravel, and mud on flat terrain. Generally dark, calcareous stony clays and clay loams support oaks, junipers, grasses, mesquites, and water-tolerant hardwoods and conifers. The canyon was named in honor of the Black Seminole scouts who served under Lt. John L. Bullis and who patrolled the area to prevent Indian attacks in the late 1870s and early 1880s.
Kenneth Wiggins Porter, "The Seminole Negro-Indian Scouts, 1870–1881," Southwestern Historical Quarterly 55 (January 1952).