Houghton topographic map

Average elevation: 22 m

Average elevation: 7 m

Average elevation: 63 m

Average elevation: 1 m

Average elevation: -1 m

Average elevation: 10 m

Average elevation: 3 m

Average elevation: 17 m

Average elevation: 2 m

Average elevation: 1 m

Average elevation: 1 m

Average elevation: 1 m

Average elevation: 18 m

Average elevation: 7 m

Average elevation: 14 m

Average elevation: 4 m

Average elevation: 3 m

Average elevation: 61 m

Average elevation: 2 m

Average elevation: 63 m

Average elevation: 18 m

Average elevation: 8 m

Average elevation: 8 m

Average elevation: 24 m

Average elevation: 9 m

Average elevation: 3 m

Average elevation: 4 m

Average elevation: 2 m

Average elevation: 25 m

Average elevation: 28 m

Average elevation: 5 m

Average elevation: 62 m

Average elevation: 7 m