Probably the Canyon and White Horse Rapids Tramway Company used for portaging around the Whitehorse Rapids on the Yukon River . Caption on image: "Steamboat landing head of Miles Canyon" Original image in Hegg Album 16, page 5 . Original photograph by Eric A. Hegg 83; copied by Webster and Stevens 210.A. *Subjects (LCTGM): Steamboats--Yukon--Miles Canyon; Canyons--Yukon; Rivers--Yukon; Shipping--Yukon--Miles Canyon *Subjects (LCSH): Gleaner (Steamboat); Australian (Steamboat); Miles Canyon (Yukon); Yukon River (Yukon and Alaska); Canyon and White Horse Rapids Tramway Company