DAS meaning in Airport Code ?

Great Bear Lake (Slave: Sahtú; French: Grand lac de l'Ours) is a lake in the boreal forest of Canada. It is the largest lake entirely in Canada (Lake Superior and Lake Huron are larger but straddle the Canada–US border), the fourth-largest in North America, and the eighth-largest in the world. The lake is in the Northwest Territories, on the Arctic Circle between 65 and 67 degrees of northern latitude and between 118 and 123 degrees western longitude, 156 m (512 ft) above sea level.

The name originated from the Chipewyan language word satudene, meaning "grizzly bear water people." The Sahtu, a Dene people, are named after the lake. Grizzly Bear Mountain on the shore of the lake also comes from Chipewyan, meaning, "bear large hill."

The Sahoyue (Grizzly Bear Mountain) peninsula on the south side of the lake and the Edacho (Scented Grass Hills) peninsula on the west side form the Saoyú-ʔehdacho National Historic Site of Canada.