PANTHER GAP. Panther Gap is a pass in north central Coke County. It runs between Meadow Mountain and Horse Mountain, and its center is eight miles northwest of Robert Lee (at 32°03' N, 100°36' W). State Highway 208 goes through it. While the elevation of the pass itself averages 2,200 feet above sea level, it runs 250 feet below the highest points of the surrounding hills. The surrounding terrain is rangeland characterized by gently sloping dissected red beds of mud and sand; in some places there are moderately steep slopes, high relief, and a few minor faults. The local shallow to moderately deep silt loams support mesquite and grasses.