Close-up view of the Loop along Denver, Northwestern & Pacific Railway (later called Denver & Salt Lake), Moffat Road, Colorado; passenger train passing over the Loop Trestle (wooden), tunnel thirty-three with standard gauge track, center &...
Railroad tracks--Colorado--1900-1920.; Trestles--Colorado--1900-1920.; Tunnels--Colorado--1900-1920.; Denver, Northwestern and Pacific Railway.
[between 1904 and 1913]
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