Texas topographic maps

Average elevation: 351 m

Average elevation: 1 m

Average elevation: 7 m

Average elevation: 21 m

Average elevation: 364 m

Average elevation: 456 m

Average elevation: 945 m

Average elevation: 417 m

Average elevation: 6 m

Average elevation: 9 m

Average elevation: 50 m

Average elevation: 175 m

Average elevation: 169 m

Average elevation: 381 m

Average elevation: 92 m