Near NE end of Endicott Mountains, on the W side of the Atigun River, 12 mi. NE of Itkillik Lake, 27 mi SW of Elusive Lake, Brooks Range. 3.6 miles long.
Named by U.S. Geological Survey (USGS) geologists in 1951 for "Barth Galbraith, a bush pilot who was lost while flying * * *" in the area. "Natravak" is the Eskimo name which means "big lake," a common name in northern Alaska.