Mount James is a 9,380-foot peak in Glacier National Park's Lewis Range, northeast of Triple Divide Peak, and its Blackfeet name, Ah'-kow-to-mak-an, means Double Runner. Like many Glacier summits, it is formed from sedimentary rock deposited in ancient shallow seas from the Precambrian to the Jurassic. The surrounding range took shape when the Lewis Overthrust fault pushed older Precambrian rock over younger Cretaceous formations about 170 million years ago. In an alpine subarctic climate, the mountain has long, bitter winters, brief cool summers, and nearby landmarks including Medicine Grizzly Lake, Medicine Owl Lake, and Bad Marriage Mountain.