Denver, Boulder & Western Railway / Switzerland Trail of America
In 1881, the Greeley, Salt Lake and Pacific Railroad laid rails from Boulder west to the town of Sunset, and in the 1890s the successor Colorado and North Western completed the line to Ward.
Until the collapse of the local mining economy after World War I, the railroad served the area’s mines and mining community. At its abandonment in 1919, the railroad operated under the name Denver, Boulder & Western. Listed under Railroads in Colorado, 1858-1948 Multiple Property Submission.