Sentinel Peak is part of the Adamant Range which is a subrange of the Selkirk Mountains.

Precipitation runoff and glacial meltwater from the mountain drains to Kinbasket Lake via Smith and Swan creeks.

Topographic relief is significant as the summit rises 1,800 metres (5,905 ft) above Smith Creek in 5 km (3.1 mi) and 1,500 metres (4,921 ft) above Swan Creek in 4 km (2.5 mi).

[6] The mountain's toponym was officially adopted on March 4, 1965, by the Geographical Names Board of Canada.

[4] Based on the Köppen climate classification, Sentinel Peak is located in a subarctic climate zone with cold, snowy winters, and mild summers.