Texas topographic maps

Average elevation: 131 m

Average elevation: 1,139 m

Average elevation: 8 m

Average elevation: 136 m

Average elevation: 609 m

Average elevation: 104 m

Average elevation: 1,042 m

Average elevation: 329 m

Average elevation: 897 m

Average elevation: 10 m

Average elevation: 485 m

Average elevation: 122 m

Average elevation: 906 m

Average elevation: 4 m

Average elevation: 452 m