Donjek Glacier is located in Kluane National Park, in Yukon, Canada, on the eastern side of the Saint Elias Mountains. Donjek Glacier is about 35 miles (56 km) long and extends into the Donyek River Valley 3,500 feet (1,100 m) to its terminus. Centuries ago Donjek Glacier formed a dam, creating Donjek Lake which is estimated to have been 230 x 106 m3.