Algoma District topographic maps

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: 432 m

Average elevation: 306 m

Average elevation: 247 m

Average elevation: 206 m

Average elevation: 199 m

Average elevation: 180 m

Average elevation: 213 m

Average elevation: 216 m

Average elevation: 209 m

Average elevation: 261 m

Average elevation: 320 m

Average elevation: 231 m

Average elevation: 188 m

Average elevation: 403 m