Chisos Mountains, Texas Hiking Trails 1. Black Gap WMA Trail Brewster County 2. Boquillas Canyon Trail Brewster County 3. Cross Canyon Trail Brewster County 4. Dominguez Spring Trail Brewster County 5. Ernst Tinaja Trail Brewster County 6. Marufa Vega Trail Brewster County 7. Mariscal Canyon Rim Trail Brewster County 8. Ore Terminal Trail Brewster County 9. Rio Grande Village Nature Trail Brewster County 10. Strawhouse - Telephone Canyon Trail Brewster County 11. Strawhouse Trail Brewster County 12. Telephone Canyon Trail Brewster County 13. Telephone Canyon Trail Brewster County