Located on the continental divide between Upper Geikie Creek Valley and Tonquin Valley. The Ramparts, on the border of Jasper & Mount Robson parks, Alberta/BC border. Major headwaters Athabasca & Fraser rivers.
Latitude 52; 42; 20 Longitude 118; 19; 30, Topo map 83D/09
Named by Interprovincial Boundary Survey in 1920. A drawbridge is a bridge across the moat of a castle which could be raised if the castle was attacked. Official name.