| Name |
Mark |
System[2] |
From |
To |
Successor |
Notes |
| Argentine Central Railway |
|
|
1905 |
1912 |
Argentine and Gray's Peak Railway |
| Argentine and Gray's Peak Railway |
|
|
1913 |
1918 |
N/A |
| Arkansas Valley Railroad |
|
ATSF |
1900 |
1907 |
Atchison, Topeka and Santa Fe Railway |
| Aspen Short Line Railway |
|
|
1888 |
1893 |
Colorado Midland Railroad |
| Aspen and Western Railway |
|
|
1880 |
1892 |
Crystal River Railway |
| Atchison, Topeka and Santa Fe Railroad |
|
ATSF |
1873 |
1895 |
Atchison, Topeka and Santa Fe Railway |
| Atchison, Topeka and Santa Fe Railway |
ATSF |
ATSF |
1895 |
1996 |
Burlington Northern and Santa Fe Railway |
| Beaver, Penrose and Northern Railway |
|
|
1909 |
1920 |
N/A |
| Book Cliff Railroad |
|
|
1899 |
1925 |
N/A |
| Burlington and Colorado Railroad |
|
CB&Q |
1881 |
1908 |
Chicago, Burlington and Quincy Railroad |
| Burlington Northern Inc. |
BN |
|
1970 |
1981 |
Burlington Northern Railroad |
| Burlington Northern Railroad |
BN |
|
1981 |
1996 |
Burlington Northern and Santa Fe Railway |
| Busk Tunnel Railway |
|
|
1890 |
1900 |
Colorado Midland Railway |
| Cadillac and Lake City Railway |
CLK |
|
1981 |
1989 |
N/A |
| Canon de Agua Railroad |
|
CB&Q |
1889 |
1890 |
Union Pacific, Denver and Gulf Railway |
| Canon City and Cripple Creek Railroad |
|
|
1897 |
1915 |
N/A |
| Canon City and San Juan Railway |
|
ATSF |
1877 |
1878 |
Pueblo and Arkansas Valley Railroad |
| Canon Coal Railway |
|
DRGW |
1872 |
1878 |
Denver and Rio Grande Railway |
| Central Kansas Railway |
CKRY |
|
1997 |
2001 |
Kansas and Oklahoma Railroad |
| Chicago, Burlington and Quincy Railroad |
CB&Q |
CB&Q |
1881 |
1970 |
Burlington Northern Inc. |
| Chicago, Burlington and Quincy Railway |
|
CB&Q |
1901 |
1907 |
N/A |
Leased the Chicago, Burlington and Quincy Railroad |
| Chicago, Kansas and Nebraska Railway |
|
RI |
1888 |
1891 |
Chicago, Rock Island and Pacific Railway |
| Chicago, Rock Island and Colorado Railway |
|
RI |
1888 |
1888 |
Chicago, Kansas and Nebraska Railway |
| Chicago, Rock Island and Pacific Railroad |
RI, ROCK |
RI |
1947 |
1980 |
Cadillac and Lake City Railway |
| Chicago, Rock Island and Pacific Railway |
RI |
RI |
1888 |
1948 |
Chicago, Rock Island and Pacific Railroad |
| Chicosa Canon Railway |
|
CB&Q |
1889 |
1890 |
Union Pacific, Denver and Gulf Railway |
| Clear Creek and Guy Gulch Wagon Road Company |
|
CB&Q |
1871 |
1873 |
Colorado Central Railroad |
| Colorado Railroad |
|
|
1938 |
1957 |
N/A |
| Colorado Railroad |
|
CB&Q |
1906 |
1930 |
Colorado and Southern Railway |
| Colorado Railway |
|
DRGW |
1883 |
1888 |
Denver and Rio Grande Railroad |
| Colorado Central Railroad |
|
CB&Q |
1869 |
1890 |
Union Pacific, Denver and Gulf Railway |
| Colorado Central and Pacific Railroad |
|
CB&Q |
1866 |
1869 |
Colorado Central Railroad |
| Colorado and Clear Creek Railroad |
|
CB&Q |
1865 |
1866 |
Colorado Central and Pacific Railroad |
| Colorado Eastern Railroad |
|
|
1894 |
1915 |
N/A |
| Colorado Eastern Railway |
|
|
1888 |
1894 |
Colorado Eastern Railroad |
| Colorado–Kansas Railway |
|
|
1911 |
1932 |
Colorado Railroad |
| Colorado, Kansas and Pacific Railway |
CKP |
|
2000 |
2003 |
Towner Railway |
| Colorado Midland Railroad |
CM |
|
1917 |
1921 |
Midland Terminal Railway |
| Colorado Midland Railroad |
|
|
1893 |
1897 |
Colorado Midland Railway |
| Colorado Midland Railway |
|
|
1897 |
1917 |
Colorado Midland Railroad |
| Colorado Midland Railway |
|
|
1883 |
1893 |
Colorado Midland Railroad |
| Colorado and New Mexico Railroad |
|
ATSF |
1873 |
1875 |
Pueblo and Arkansas Valley Railroad |
| Colorado Northern Railway |
|
CB&Q |
1883 |
1884 |
Denver, Utah and Pacific Railroad |
| Colorado and Northwestern Railroad |
|
|
1904 |
1909 |
Denver, Boulder and Western Railroad |
| Colorado and Northwestern Railway |
|
|
1897 |
1904 |
Colorado and Northwestern Railroad |
| Colorado and Pacific Wagon, Telegraph and Railroad Company |
|
CB&Q |
1861 |
1871 |
Clear Creek and Guy Gulch Wagon Road Company |
| Colorado and Salt Lake Railroad |
|
CB&Q |
1871 |
1872 |
Colorado Central Railroad |
| Colorado and Southeastern Railroad |
C&SE |
|
1909 |
1952 |
N/A |
| Colorado and Southeastern Railway |
|
|
1903 |
1909 |
Colorado and Southeastern Railroad |
| Colorado and Southern Railway |
C&S, CS |
CB&Q |
1898 |
1981 |
Burlington Northern Railroad |
| Colorado Southwestern Railway |
|
DRGW |
1888 |
1889 |
Rio Grande Junction Railway |
| Colorado Springs and Cripple Creek District Railway |
CCD |
|
1899 |
1920 |
N/A |
| Colorado and Utah Railway |
|
|
1886 |
1892 |
Crystal River Railway |
| Colorado and Wyoming Railroad |
|
CB&Q |
1887 |
1908 |
Chicago, Burlington and Quincy Railroad |
| Colorado, Wyoming and Eastern Railway |
|
UP |
1914 |
1924 |
Northern Colorado and Eastern Railroad |
| Colorado, Wyoming and Great Northern Railroad |
|
|
1894 |
1899 |
Book Cliff Railroad |
| Cripple Creek and Colorado Springs Railroad |
|
|
1915 |
1921 |
Midland Terminal Railway |
| Cripple Creek District Railway |
|
|
1897 |
1899 |
Colorado Springs and Cripple Creek District Railway |
| Crystal River Railroad |
|
|
1898 |
1941 |
N/A |
| Crystal River Railway |
|
|
1892 |
1898 |
Crystal River Railroad |
| Crystal River and San Juan Railroad |
|
|
1906 |
1941 |
N/A |
| Denver Railroad and Land Company |
|
|
1886 |
1887 |
Denver Railroad, Land and Coal Company |
| Denver Railroad, Land and Coal Company |
|
|
1887 |
1888 |
Colorado Eastern Railway |
| Denver Railway |
DRWY |
|
1989 |
1993 |
Denver Rock Island Railroad |
| Denver and Boulder Valley Railroad |
|
UP |
1870 |
1898 |
Union Pacific Railroad |
| Denver, Boulder and Western Railroad |
|
|
1909 |
1919 |
N/A |
| Denver Circle Railroad |
|
ATSF |
1880 |
1886 |
Denver and Santa Fe Railway |
| Denver, Clear Creek and Western Railway |
|
DRGW |
1888 |
1899 |
Denver and Rio Grande Railroad |
| Denver, Cripple Creek and Southwestern Railroad |
|
CB&Q |
1896 |
1899 |
Colorado and Southern Railway |
| Denver, Golden and Salt Lake Railroad |
|
CB&Q |
1881 |
1917 |
Chicago, Burlington and Quincy Railroad |
| Denver and Inter-Mountain Railroad |
D&IM, DIM |
|
1909 |
1953 |
N/A |
Electric after 1909 |
| Denver and Inter-Mountain Railway |
|
|
1904 |
1909 |
Denver and Inter-Mountain Railroad |
| Denver, Lakewood and Golden Railroad |
|
|
1890 |
1904 |
Denver and Inter-Mountain Railway |
| Denver, Laramie and Northern Railroad |
|
|
1917 |
1917 |
Great Western Railway of Colorado |
| Denver, Laramie and Northwestern Railroad |
|
|
1910 |
1917 |
Denver, Laramie and Northern Railroad |
| Denver, Laramie and Northwestern Railway |
|
|
1906 |
1910 |
Denver, Laramie and Northwestern Railroad |
| Denver, Leadville and Gunnison Railway |
|
CB&Q |
1889 |
1898 |
Colorado and Southern Railway |
| Denver, Longmont and Northwestern Railroad |
|
CB&Q |
1881 |
1883 |
Colorado Northern Railway |
| Denver, Marshall and Boulder Railway |
|
CB&Q |
1885 |
1890 |
Union Pacific, Denver and Gulf Railway |
| Denver and Middle Park Railroad |
|
CB&Q |
1883 |
1890 |
Union Pacific, Denver and Gulf Railway |
| Denver and Montana Railroad |
|
CB&Q |
1899 |
1908 |
Chicago, Burlington and Quincy Railroad |
| Denver and New Orleans Railroad |
|
CB&Q |
1881 |
1886 |
Denver, Texas and Gulf Railroad |
| Denver, Northwestern and Pacific Railway |
|
DRGW |
1902 |
1913 |
Denver and Salt Lake Railroad |
| Denver Pacific Railway and Telegraph Company |
|
UP |
1867 |
1880 |
Union Pacific Railway |
| Denver and Rio Grande Railroad |
|
DRGW |
1886 |
1921 |
Denver and Rio Grande Western Railroad |
| Denver and Rio Grande Railway |
|
DRGW |
1870 |
1886 |
Denver and Rio Grande Railroad |
| Denver and Rio Grande Western Railroad |
D&RG, D&RGW, DRGW |
DRGW |
1920 |
1997 |
Union Pacific Railroad |
| Denver and Salt Lake Railroad |
D&SL |
DRGW |
1912 |
1927 |
Denver and Salt Lake Railway |
| Denver and Salt Lake Railway |
D&SL |
DRGW |
1926 |
1947 |
Denver and Rio Grande Western Railroad |
| Denver and Salt Lake Western Railroad |
|
DRGW |
1924 |
1947 |
Denver and Rio Grande Western Railroad |
| Denver and Santa Fe Railway |
|
ATSF |
1887 |
1900 |
Atchison, Topeka and Santa Fe Railway |
| Denver, South Park and Hill Top Railway |
|
CB&Q |
1896 |
1897 |
Denver, Leadville and Gunnison Railway |
| Denver, South Park and Pacific Railroad |
|
CB&Q |
1873 |
1889 |
Denver, Leadville and Gunnison Railway |
| Denver, South Park and Pacific Railway |
|
CB&Q |
1872 |
1873 |
Denver, South Park and Pacific Railroad |
| Denver and Southwestern Railway |
|
|
1899 |
1904 |
Cripple Creek Central Railway (holding company) |
| Denver Terminal Railroad |
DTMR |
|
1986 |
1989 |
Denver Railway |
| Denver, Texas and Gulf Railroad |
|
CB&Q |
1885 |
1890 |
Union Pacific, Denver and Gulf Railway |
| Denver, Texas and Fort Worth Railroad |
|
CB&Q |
1887 |
1890 |
Union Pacific, Denver and Gulf Railway |
| Denver Union Railway and Terminal Company |
|
UP |
1889 |
1900 |
Union Pacific Railroad |
| Denver Union Terminal Railway |
DUT |
ATSF/ CB&Q/ DRGW/ RI/ UP |
1912 |
2001 |
Regional Transportation District |
| Denver, Utah and Pacific Railroad |
|
CB&Q |
1880 |
1908 |
Chicago, Burlington and Quincy Railroad |
| Denver, Western and Pacific Railway |
|
CB&Q |
1880 |
1885 |
Denver, Marshall and Boulder Railway |
| Elk Mountain Railway |
|
|
1887 |
1898 |
Crystal River Railroad |
| Florence and Cripple Creek Railroad |
|
|
1893 |
1915 |
Cripple Creek and Colorado Springs Railroad |
| Fort Collins Development Railway |
|
CB&Q |
1902 |
1908 |
Colorado Railroad |
| Fort Worth and Denver Railway |
FWD |
CB&Q |
1981 |
1982 |
Burlington Northern Railroad |
| Georgetown, Breckenridge and Leadville Railway |
|
CB&Q |
1881 |
1890 |
Union Pacific, Denver and Gulf Railway |
| Gilpin Railroad |
|
CB&Q |
1909 |
1917 |
N/A |
| Gilpin Tramway Company |
|
CB&Q |
1886 |
1906 |
Gilpin Railroad |
| Golden Circle Railroad |
|
|
1896 |
1915 |
Cripple Creek and Colorado Springs Railroad |
| Golden City and Gilpin County Wagon and Railroad Company |
|
CB&Q |
1870 |
1872 |
Colorado Central Railroad |
| Golden City and South Platte Railway and Telegraph Company |
|
|
1872 |
1880 |
N/A |
| Grand Valley Railway |
|
DRGW |
1886 |
1887 |
Denver and Rio Grande Railroad |
| Greeley, Salt Lake and Pacific Railway |
|
CB&Q |
1881 |
1890 |
Union Pacific, Denver and Gulf Railway |
| Greeley Terminal Railway |
|
|
1909 |
1917 |
N/A |
| Holly and Swink Railway |
|
ATSF |
1906 |
1907 |
Atchison, Topeka and Santa Fe Railway |
| Kansas–Colorado Railroad |
|
|
1908 |
1910 |
Colorado–Kansas Railway |
| Kansas Pacific Railway |
|
UP |
1869 |
1880 |
Union Pacific Railway |
| Laramie, Hahns Peak and Pacific Railway |
|
UP |
1911 |
1914 |
Colorado, Wyoming and Eastern Railway |
| Laramie, North Park and Western Railroad |
|
UP |
1924 |
1951 |
Union Pacific Railroad |
| Larimer and Routt County Railway |
|
UP |
1907 |
1914 |
Colorado, Wyoming and Eastern Railway |
| Leadville Mineral Belt Railway |
|
CB&Q |
1898 |
1900 |
Colorado and Southern Railway |
| Leadville, Ten Mile and Breckenridge Railway |
|
DRGW |
1880 |
1880 |
Denver and Rio Grande Railway |
| Little Book Cliff Railway |
|
|
1889 |
1894 |
Colorado, Wyoming and Great Northern Railroad |
| London, South Park and Leadville Railroad |
|
|
1882 |
1885 |
South Park and Leadville Short Line Railroad |
| Longmont and Erie Railroad |
|
CB&Q |
1878 |
1881 |
Denver, Longmont and Northwestern Railroad |
| Midland Terminal Railway |
MTR |
|
1892 |
1949 |
N/A |
| Missouri Pacific Railroad |
MP |
MP |
1917 |
1997 |
Union Pacific Railroad |
| Missouri Pacific Railway |
|
MP |
1887 |
1917 |
Missouri Pacific Railroad |
| Mount Carbon, Gunnison and Lake City Railroad and Coal Transportation Company |
|
CB&Q |
1877 |
1881 |
Denver, South Park and Pacific Railroad |
| Nebraska, Kansas and Colorado RailNet |
NKCR |
|
1996 |
2005 |
Nebraska Kansas Colorado Railway |
| Northern Colorado and Eastern Railroad |
|
UP |
1924 |
1924 |
Laramie, North Park and Western Railroad |
| Northwestern Terminal Railroad |
|
DRGW |
1927 |
1968 |
Denver and Rio Grande Western Railroad |
| Northwestern Terminal Railway |
|
DRGW |
1904 |
1927 |
Northwestern Terminal Railroad |
| Platt Valley Railway |
|
|
1993 |
1993 |
Denver Rock Island Railroad |
| Pueblo and Arkansas Valley Railroad |
|
ATSF |
1875 |
1900 |
Atchison, Topeka and Santa Fe Railway |
| Pueblo and Salt Lake Railway |
|
ATSF |
1873 |
1875 |
Pueblo and Arkansas Valley Railroad |
| Pueblo and State Line Railroad |
|
MP |
1887 |
1910 |
Missouri Pacific Railway |
| Pueblo Union Depot and Railroad Company |
|
ATSF/ CB&Q/ DRGW/ MP/ RI |
1887 |
|
|
| Rio Grande Railroad |
|
DRGW |
1900 |
1908 |
Denver and Rio Grande Railroad |
| Rio Grande Gunnison Railway |
|
DRGW |
1891 |
1908 |
Denver and Rio Grande Railroad |
| Rio Grande Junction Railway |
|
DRGW |
1889 |
1947 |
Denver and Rio Grande Western Railroad |
| Rio Grande, Pagosa and Northern Railroad |
|
DRGW |
1899 |
1908 |
Denver and Rio Grande Railroad |
| Rio Grande and Pagosa Springs Railroad |
|
|
1895 |
1914 |
N/A |
| Rio Grande, Pueblo and Southern Railroad |
|
DRGW |
1902 |
1908 |
Denver and Rio Grande Railroad |
| Rio Grande Sangre de Cristo Railroad |
|
DRGW |
1901 |
1908 |
Denver and Rio Grande Railroad |
| Rio Grande Southern Railroad |
|
DRGW |
1889 |
1951 |
N/A |
| Rio Grande Western Railway |
|
DRGW |
1889 |
1908 |
Denver and Rio Grande Railroad |
| Road Canon Railroad |
|
CB&Q |
1889 |
1890 |
Union Pacific, Denver and Gulf Railway |
| St. Joseph and Iowa Railroad |
|
RI |
1888 |
1888 |
Chicago, Rock Island and Pacific Railway |
| San Luis Southern Railway |
|
|
1909 |
1928 |
San Luis Valley Southern Railway |
| San Luis Valley Southern Railway |
|
|
1928 |
1953 |
Southern San Luis Valley Railroad |
| Silverton Railroad |
|
|
1887 |
1904 |
Silverton Railway |
| Silverton Railway |
|
|
1904 |
1922 |
N/A |
| Silverton, Gladstone and Northerly Railroad |
|
|
1899 |
1915 |
Silverton Northern Railroad |
| Silverton Northern Railroad |
|
|
1895 |
1941 |
N/A |
| South Park and Leadville Short Line Railroad |
|
|
1885 |
1900 |
N/A |
| Southern San Luis Valley Railroad |
SSLV |
|
1953 |
1996 |
N/A |
| State Line and Denver Railway |
|
DRGW |
1889 |
1889 |
Rio Grande Western Railway |
| Trinidad Railway |
TRIN |
|
1992 |
|
|
Still exists as a joint lessor of the BNSF Railway and Union Pacific Railroad |
| Trinidad and Denver Railroad |
|
DRGW |
1886 |
1888 |
Denver and Rio Grande Railroad |
| Trinidad and Denver Terminal and Railway Company |
|
DRGW |
1888 |
1899 |
Denver and Rio Grande Railroad |
| Uintah Railway |
|
|
1903 |
1939 |
N/A |
| Union Depot and Railroad Company |
|
ATSF/ CB&Q/ DRGW/ RI/ UP |
1879 |
1899 |
Union Depot and Railway Company |
| Union Depot and Railway Company |
|
ATSF/ CB&Q/ DRGW/ RI/ UP |
1899 |
1914 |
Denver Union Terminal Railway |
| Union Pacific Railway |
|
UP |
1880 |
1898 |
Union Pacific Railroad |
| Union Pacific Railway, Eastern Division |
|
UP |
1866 |
1869 |
Kansas Pacific Railway |
| Union Pacific, Denver and Gulf Railway |
|
CB&Q |
1890 |
1898 |
Colorado and Southern Railway |
| Union Pacific, Lincoln and Colorado Railway |
|
UP |
1888 |
1898 |
N/A |
Sold at foreclosure; no property in Colorado |
| Walsenburg and Western Railway |
|
CB&Q |
1907 |
1910 |
Colorado Railroad |
