Topographic relief is significant as the summit rises 870 metres (2,850 ft) above Allison Creek in two kilometres (1.2 mi).

The summit of Seven Sisters Mountain lies four kilometres (2.5 mi) east of the Continental Divide and the nearest higher neighbor is Crowsnest Mountain, 2 kilometres (1.2 mi) immediately to the south.

[4] The mountain's present toponym was officially adopted in 1978 by the Geographical Names Board of Canada.

[3] Seven Sisters Mountain is composed of limestone and shale of Late Devonian to Early Mississippian age.

Formed in shallow seas, this sedimentary rock was initially uplifted beginning 170 million years ago when the Lewis Overthrust fault pushed an enormous slab of rocks three miles (4.8 km) thick, 50 miles (80 km) wide and 160 miles (260 km) long over younger rock during the Laramide orogeny.