The Kaskawulsh Glacier is a vast, temperate valley glacier nestled in the Saint Elias Mountains, within Kluane National Park in the Canadian territory of Yukon.

[1] Located approximately 6,000–9,000 ft (1,800–2,700 m) above sea level, the glacier covers more than 15,000 sq mi (39,000 km2) of the surrounding landscape.

[3] The Kaskawulsh is the result of two converging outlet glaciers, the Central and North Arms, and is an impressive 3–4 mi (4.8–6.4 km) wide at its broadest point.

[2] Until 2016, abundant melt water from the Kaskawulsh was channeled by ice dam to drain through the Slims River, north to Kluane Lake, and ultimately to the Bering Sea.

[6] Backpackers can visit the Kaskawulsh along the popular Slims River West Trail, which follows the Slims River south for 19.9 mi (32.0 km) before ending at the summit of Observation Mountain near the toe of the glacier.