Bad Water Railway BDW 2000 2002 Bighorn Divide and Wyoming Railroad

Big Horn Railroad CB&Q 1905 1916 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

Carbon Cut-Off Railway UP 1889 1899 Union Pacific Railroad

Cheyenne and Burlington Railroad CB&Q 1887 1908 Chicago, Burlington and Quincy Railroad

Cheyenne and Northern Railway UP 1886 1890 Union Pacific, Denver and Gulf Railway

Chicago, Burlington and Quincy Railroad CB&Q, CBQ CB&Q 1889 1970 Burlington Northern Inc.

Chicago, Burlington and Quincy Railway CB&Q 1901 1907 N/A Leased the Chicago, Burlington and Quincy Railroad

Chicago and North Western Railway CNW CNW 1903 1972 Chicago and North Western Transportation Company

Chicago and North Western Transportation Company CNW CNW 1972 1995 Union Pacific Railroad

Colorado Railroad CB&Q 1909 1930 Colorado and Southern Railway

Colorado Central Railroad UP 1877 1890 Union Pacific, Denver and Gulf Railway

Colorado and Southern Railway C&S, CS CB&Q 1898 1981 Burlington Northern Railroad

Colorado and Wyoming Railway CW 1899 1980 N/A

Colorado, Wyoming and Eastern Railway UP 1914 1924 Northern Colorado and Eastern Railroad

Denver Pacific Railway and Telegraph Company UP 1867 1880 Union Pacific Railway

Eastern Wyoming Railway CNW 1890 1891 Fremont, Elkhorn and Missouri Valley Railroad

Fremont, Elkhorn and Missouri Valley Railroad CNW 1891 1903 Chicago and North Western Railway

Grand Island and Northern Wyoming Railroad CB&Q 1889 1897 Chicago, Burlington and Quincy Railroad

Laramie, Hahns Peak and Pacific Railway 1901 1914 Colorado, Wyoming and Eastern Railway

Laramie, North Park and Pacific Railroad and Telegraph Company UP 1880 1900 Union Pacific Railroad

Laramie, North Park and Western Railroad UP 1924 1951 Union Pacific Railroad

Nebraska, Wyoming and Western Railroad CB&Q 1899 1908 Chicago, Burlington and Quincy Railroad

North and South Railway 1923 1935 N/A

Northern Colorado and Eastern Railroad UP 1924 1924 Laramie, North Park and Western Railroad

Oregon Short Line Railroad UP 1897 1987 Union Pacific Railroad

Oregon Short Line Railway UP 1881 1889 Oregon Short Line and Utah Northern Railway

Oregon Short Line and Utah Northern Railway UP 1889 1897 Oregon Short Line Railroad

Saratoga and Encampment Railway UP 1905 1928 Saratoga and Encampment Valley Railroad

Saratoga and Encampment Valley Railroad UP 1928 1951 Union Pacific Railroad

Union Pacific Railroad UP 1862 1880 Union Pacific Railway

Union Pacific Railway UP 1880 1898 Union Pacific Railroad

Union Pacific, Denver and Gulf Railway UP 1890 1898 Colorado and Southern Railway

Wyoming Railway WYO 1909 1953 N/A

Wyoming Central Railway CNW 1885 1891 Fremont, Elkhorn and Missouri Valley Railroad

Wyoming Colorado Railroad WYCO 1987 2007 none Line scrapped in 2007, the division in the state of Oregon is still in operation, however.

Wyoming and Missouri River Railroad 1895 1924 Wyoming and Missouri River Railway

Wyoming and Missouri River Railway 1924 1927 N/A

Wyoming North and South Railroad 1923 1924 North and South Railway

Wyoming and Northwestern Railway CNW 1904 1920 Chicago and North Western Railway

Wyoming State Railway CNW 1904 1904 Wyoming and Northwestern Railway

Wyoming Western Railroad UP 1900 1910 Oregon Short Line Railroad