|Railroad||Miles operated in Colorado1|
|Class I railroads||2,967|
|Burlington Northern and Santa Fe Railway Co.||1,346|
|Union Pacific Railroad Co.||1,621|
|Central Kansas Railway||5|
|Nebraska, Kansas, and Colorado RailNet, Inc.||63|
|Colorado, Kansas, and Pacific Railway Co.||122|
|Great Western Railway of Colorado||80|
|Rock and Rail, Inc.||53|
|San Luis Central Railroad||12|
|Switching and terminal railroads||124|
|Cimarron Valley Railroad||28|
|Colorado and Wyoming Railway||85|
|Denver Rock Island Railroad||11|
1 Miles operated is in terms of railroad so that a mile of single track is counted the same as a mile of double track. Sidings, turnouts, yard switching mileage, and mileage not operated are excluded. Miles operated under trackage rights provided by another (owning) railroad are included.
NOTE: For definition of railroad types see previous table.
SOURCE: Association of American Railroads, Railroads and States - 2000, Washington, DC: 2002, available at http://www.aar.org/AboutTheIndustry/StateInformation.asp as of Mar. 19, 2002.