Antique topographic maps

Average elevation: 25 m

Average elevation: 92 m

Average elevation: 180 m

Average elevation: 1 m

Average elevation: 189 m

Average elevation: 42 m

Average elevation: 127 m

Average elevation: 248 m

Average elevation: 72 m

Average elevation: 12 m

Average elevation: 113 m

Average elevation: 22 m

Average elevation: 70 m

Average elevation: 20 m

Average elevation: 4 m

Average elevation: 142 m

Average elevation: 95 m

Average elevation: 66 m

Average elevation: 32 m

Average elevation: 49 m

Average elevation: 142 m

Average elevation: 58 m

Average elevation: 7 m

Average elevation: 61 m

Average elevation: 422 m

Average elevation: 13 m

Average elevation: 14 m

Average elevation: 228 m

Average elevation: 245 m

Average elevation: 53 m

Average elevation: 52 m

Average elevation: 766 m

Average elevation: 146 m

Average elevation: 26 m

Average elevation: 187 m

Average elevation: 17 m

Average elevation: 210 m

Average elevation: 47 m

Average elevation: 15 m

Average elevation: 28 m

Average elevation: 10 m

Average elevation: 79 m

Average elevation: 11 m

Average elevation: 190 m

Average elevation: 40 m

Average elevation: 556 m

Average elevation: 14 m

Average elevation: 59 m

Average elevation: 35 m

Average elevation: 17 m

Average elevation: 72 m

Average elevation: 198 m

Average elevation: 1,265 m

Average elevation: 335 m

Average elevation: 6 m

Average elevation: 263 m

Average elevation: 143 m

Average elevation: 165 m

Average elevation: 126 m

Average elevation: 48 m

Average elevation: 12 m

Average elevation: 63 m

Average elevation: 1 m

Average elevation: 24 m

Average elevation: 49 m

Average elevation: 34 m