>>1055133There were multiple narrow gauge railways active in the U.S. as late as the 1970's. One of the largest was the Denver & Rio Grande Western which started as a 3' narrow gauge line servicing the Colorado Rocky Mountains. It expanded to include standard gauge lines that reached as far as California. The D&RGW had something like 2000 miles of narrow gauge line at one point as well as long sections of dual gauge line. Narrow gauge operations had mostly ended by the mid 1970's and most of the trackage was abandoned. Sections were preserved and converted into scenic tourist railroads, such as the Durango & Silverton. The D&G operates several 2-8-0 and 2-8-2 locomotives on about 60 miles of right of way. There are a couple of other D&RGW remnants operating as well including the Cumbres & Toltec operating in southern Colorado.And northern New Mexico on 64 miles or right of way. There are three other remnants operating, but they are all standard gauge.
