Idaho Stops on the Salt Lake-Great Falls Airway (1931) Salt Lake-Great Falls Airway (1931), includes stops along the Salt Lake-Pocatello section and Pocatello-Great Falls section. The installation at Dubois still includes a generator shed (newly painted, with the route and stop number on the roof), operating beacon, and a concrete arrow that has been repainted bright yellow. The type of arrow at Dubois was later replaced by metal arrows. The site at Monida has an operating beacon and a newly restored generator shed.