Algoma District topographic maps

Average elevation: 306 m

Average elevation: 247 m

Average elevation: 206 m

Average elevation: 213 m

Average elevation: 180 m

Its highest point, known colloquially and by surveyors as "the Mountain," is near the centre of the island near Carterton with an elevation of 345.6 m, which is about 169 m above Lake Huron.

Average elevation: 196 m

Average elevation: 199 m

Average elevation: 216 m

Average elevation: 403 m

Average elevation: 432 m

Average elevation: 261 m

Average elevation: 209 m

Average elevation: 320 m

Average elevation: 231 m

Average elevation: 188 m

Average elevation: 325 m