It is the highest point of the Carbonate Range which is a subrange of the Purcell Mountains.

Topographic relief is significant as the summit rises 1,524 metres (5,000 feet) above Syncline Creek in three kilometres (1.86 mile).

The mountain's toponym was officially adopted on September 14, 1967, by the Geographical Names Board of Canada.

[3] Based on the Köppen climate classification, International Mountain is located in a subarctic climate zone with cold, snowy winters, and mild summers.

This climate supports unnamed glaciers on the mountain's slopes.