This is a list of 3 ft (914 mm) narrow-gauge railways in the United States.
Narrow-gauge railroads of various sizes existed across the US, especially during the late 1800s, with the most popular gauge being 3 ft gauge.[1][2] Some of the more famous 3 ft gauge railroad networks in the US were based in California, Colorado, and Hawaii. These narrow-gauge lines were easier to build than standard gauge and cost significantly less to construct. Some of the lines of these former networks still exist in the present day and continue to use 3 ft gauge track, while the rest were either widened to standard gauge or abandoned (see table below).
Alaska Railroad (standard gauge lines also present) (dual gauge lines with standard gauge track previously present) (defunct - standard gauge lines still operating)
California State Railroad Museum (standard gauge lines and dual gauge lines with standard gauge track also present) (all 3 ft gauge trackage is dual-gauged with standard gauge trackage) (operating)
(located at the Travel Town Museum) (defunct - museum still operating)
Death Valley Railroad (defunct)
Deer Lake Park & Julian Railroad (located at the vacation home of Disney animator Ollie Johnston) (defunct)
Grand Centennial Excursion Railroad (located in Six Flags Magic Mountain) (separate 1,000 mm (3 ft 3+3⁄8 in) gauge railway named Orient Express also present and separate 2 ft (610 mm) gauge railway named 99 Steam Train previously present) (defunct - park and first separate railway still operating)
Justi Creek Railway (private) (adjacent to the home of and owned by Pixar and Walt Disney Animation StudiosCCOJohn Lasseter) (the train from the Deer Lake Park & Julian Railroad and the depot building from the Grizzly Flats Railroad are incorporated) (operating)
Laws Railroad Museum and Historic Site[3] (operating)
Northwestern Pacific Railroad (standard gauge lines also present) (dual gauge lines with standard gauge track previously present) (defunct - standard gauge lines still operating)
Southern California Railway Museum (standard gauge lines, 3 ft 6 in (1,067 mm) gauge lines, and dual gauge lines with standard gauge track and 3 ft 6 in gauge track also present) (operating)
Colorado and Southern Railway (U.S. Class I railroad) (standard gauge lines also present) (dual gauge lines with standard gauge track previously present) (converted to standard gauge) (defunct)
Colorado Central Railroad (crossed into Wyoming) (standard gauge lines also present) (defunct)
Colorado Railroad Museum (dual gauge lines with standard gauge track also present) (operating)
Denver & Rio Grande Railroad (crossed into New Mexico) (standard gauge lines and dual gauge lines with standard gauge track also present) (partially converted to standard gauge) (defunct)
Denver & Rio Grande Railway (crossed into New Mexico) (defunct)
Denver & Rio Grande Western Railroad (U.S. Class I railroad) (standard gauge lines also present) (dual gauge lines with standard gauge track previously present) (converted to standard gauge) (defunct)
Georgetown Loop Railroad (reconstructed C&S line) (U.S. National Historic Landmark status shared with nearby towns of Georgetown and Silver Plume) (operating)
Gilpin Railroad (2 ft (610 mm) gauge lines and dual gauge lines with 2 ft gauge track also present) (all 3 ft (914 mm) gauge trackage was dual-gauged with 2 ft gauge trackage) (defunct)
Hesston Steam Museum (2 ft (610 mm) gauge lines and dual gauge lines with 2 ft gauge track also present) (all 3 ft (914 mm) gauge trackage is dual-gauged with 2 ft gauge trackage) (separate 14 in (356 mm) gauge railway and separate 7+1⁄2 in (190.5 mm) gauge railway also present) (operating)
Dayton and Ironton Railroad (converted to standard gauge) (defunct)
Dayton and South Eastern Railroad (defunct)
Dayton and Toledo Railroad (defunct)
Dayton, Lebanon and Cincinnati Railroad (converted to standard gauge) (defunct)
Iron Railroad (4 ft 10 in (1,473 mm) Ohio gauge lines and dual gauge lines with 4 ft 10 in track also present) (all 3 ft (914 mm) gauge trackage was dual-gauged with 4 ft 10 in trackage) (defunct)
Toledo, Cincinnati and St. Louis Railroad (crossed into Indiana and Illinois) (4 ft 10 in (1,473 mm) Ohio gauge lines and dual gauge lines with 4 ft 10 in track also present) (defunct)
Little Saw Mill Run Railroad (dual gauge lines with standard gauge track previously present) (all 3 ft (914 mm) gauge trackage was dual-gauged with standard gauge trackage) (defunct)
East Tennessee & Western North Carolina Railroad (crossed into North Carolina) (standard gauge lines and dual gauge lines with standard gauge track also present) (defunct)
(located in Lakeland Amusement Park) (separate 16 in (406 mm) gauge railway also present) (defunct)
Utah & Northern Railway (crossed into Idaho and Montana) (dual gauge lines with standard gauge track previously present) (partially converted to standard gauge) (defunct)
Wasatch & Jordan Valley Railway (defunct)
Vermont
Brattleboro and Whitehall Railroad (defunct)
Deerfield River Railroad (crossed into Massachusetts) (defunct)
Oregon Short Line Railway (crossed into Idaho and Oregon) (dual gauge lines with standard gauge track previously present) (all 3 ft (914 mm) gauge trackage was dual-gauged with standard gauge trackage) (defunct)
Broggie, Michael (2014), Walt Disney's Railroad Story: The Small-Scale Fascination That Led to a Full-Scale Kingdom (4th ed.), The Donning Company Publishers, ISBN978-1-57864-914-3
