Caption on image: "Looking across the canyon from Porcupine Hill White Pass and Yukon Route" Original image in Hegg Album 2, page 19 . Original photograph by Eric A. Hegg 638; copied by Webster and Stevens 218.A. *Subjects (LCTGM): Canyons--Alaska; Railroad tracks--Alaska--Porcupine Hill *Subjects (LCSH): White Pass & Yukon Route (Firm)