Marmot Mountain is a 2,608-metre peak in Jasper National Park’s Trident Range, rising above the Athabasca Valley south of Jasper. Its slopes drain into Portal Creek and Whistlers Creek, tributaries of the Athabasca River, and its eastern side includes the Marmot Basin ski area, supported by a subarctic climate of snowy winters and mild summers. Named in 1916 for the marmot that inhabits these alpine slopes, the name was officially adopted in 1951. The mountain is formed of sedimentary rock deposited from the Precambrian to the Jurassic and later thrust eastward during the Laramide orogeny, making it a prominent natural landmark in the Jasper landscape.