I purchased this W.H. Jackson glass slide that was titled "Within The Gates". I thought the engine was DSP&P Engine 54 but I'm not sure. Any assistance would be appreciated
Photo was taken in Glenwood Canon. Loco is D&RG 2-8-0 Class 56 #54 the "Ruby Camp", note the SG width ties laid in the hurry to reach Aspen before the Colorado Midland.