| Railroad | Records | Links |
|---|
| Totals | 33,505 | 1,022 |
|---|
| Cache Valley Railroad | 7 | |
| Cadiz Railroad | 6 | |
| Cairo and Fulton Railroad of Arkansas | 17 | |
| Cairo and Fulton Railroad of Missouri | 16 | |
| Cairo and Kanawha Valley Railroad | 6 | |
| Cairo and St Louis Railroad | 5 | |
| Cairo and Vincennes Railroad | 11 | 1 |
| Cairo Vincennes and Chicago Railroad | 5 | |
| Cairo, Memphis and Southern Railroad | 7 | |
| Calais and Baring Railroad | 11 | |
| Caldwell and Northern Railroad | 5 | |
| California and Nevada Railroad | 4 | |
| California Northwestern Railway | 10 | |
| California Southern Railroad | 14 | |
| Cambria Terminal Railroad | 5 | |
| Camden and Amboy Railroad | 26 | 4 |
| Camden and Atlantic Railroad | 45 | |
| Cammal and Black Forest Railway | 8 | |
| Canada Atlantic Railway | 19 | |
| Canada Coals and Railway Company | 6 | |
| Canada Eastern Railway | 12 | |
| Canada Southern Railway | 25 | 3 |
| Canadian Government Railways | 17 | |
| Canadian Northern Railway | 10 | |
| Canadian Pacific Railway | 120 | 1 |
| Canandaigua and Elmira Railroad | 14 | |
| Canandaigua and Niagara Falls Railroad | 25 | |
| Cananea Consolidated Copper Company Railway | 6 | |
| Cane Belt Railroad | 8 | |
| Cape Ann Granite Railroad | 4 | |
| Cape Cod Railroad | 47 | 2 |
| Cape Fear and Northern Railway | 5 | 1 |
| Cape Fear and Yadkin Valley Railway | 10 | 3 |
| Cape Girardeau MO Railway | | 2 |
| Caraquet Railway | 8 | |
| Carillon and Grenville Railroad | 8 | |
| Carolina and North Western Railway | 12 | |
| Carolina Central Railroad | 5 | 2 |
| Carolina Northern Railway | 5 | |
| Carrabelle, Tallahassee and Georgia Railroad | 10 | |
| Carrollton and Oneida Railroad | 6 | |
| Carrollton Short Line Railway | 6 | |
| Carthage Railroad | 11 | |
| Cashie and Chowan Railroad and Lumber Company | 4 | 1 |
| Cassville and Western Railway | 4 | |
| Catasauqua and Fogelsville Railroad | 20 | |
| Catawissa Railroad | 16 | 1 |
| Catawissa, Williamsport and Erie Railroad | 12 | |
| Catskill Mountain Railway | 6 | |
| Cayuga and Susquehanna Railroad | 11 | 1 |
| Cedar Rapids and Missouri River Railroad | 18 | 6 |
| Central Arizona Railway | 5 | |
| Central Branch Union Pacific Railway | 11 | 1 |
| Central Iowa Railway | 17 | 2 |
| Central Military Tract Railroad | 20 | 3 |
| Central New England Railway | 15 | 1 |
| Central of Georgia Railway | 91 | 3 |
| Central Ohio Railroad | 31 | |
| Central Ontario Railway | 11 | |
| Central Pacific Railroad | 29 | 6 |
| Central Railroad of Minnesota | 5 | |
| Central Railroad of New Jersey | 118 | 2 |
| Central Railroad of Pennsylvania | 6 | |
| Central Railway of New Brunswick | 7 | |
| Central Railway of Nova Scotia | 7 | |
| Central Union Depot and Railway Company of Cincinnati | 5 | 1 |
| Central Vermont Railway | 99 | 5 |
| Chambersburg, Greencastle and Hagerstown Railroad | 7 | |
| Champlain and St Lawrence Railroad | 15 | |
| Charleston and Savannah Railroad | | 1 |
| Charleston and Savannah Railway | 27 | 1 |
| Charleston and Western Carolina Railway | 7 | |
| Charleston, Cincinnati and Chicago Railroad | 11 | |
| Charleston, Clendenin and Sutton Railroad | 7 | |
| Charlotte and South Carolina Railroad | 37 | |
| Charlotte, Columbia and Augusta Railroad | 10 | 2 |
| Charlotte, Monroe and Columbia Railroad | 4 | |
| Chateaugay Railroad | 9 | |
| Chatham Railroad | | 1 |
| Chattahoochee Valley Railroad | 7 | |
| Chattanooga Rome and Columbus Railroad | 6 | |
| Chattanooga Southern Railroad | 11 | |
| Chattanooga Union Railway | 8 | |
| Chautauqua Lake Railway | 5 | |
| Cheat Valley Railroad | 4 | |
| Chemung Railroad | 14 | |
| Cheraw and Darlington Railroad | 20 | |
| Chesapeake and Nashville Railway | 8 | |
| Chesapeake and Ohio Railroad | 103 | 10 |
| Chesapeake and Western Railroad | 7 | |
| Chesapeake Beach Railway | 8 | |
| Chesapeake Ohio and Southwestern Railroad | 8 | |
| Cheshire Railroad | 17 | |
| Chester Valley Railroad | 16 | 1 |
| Chesterfield and Lancaster Railroad | 3 | |
| Chestnut Hill Railroad | 23 | 2 |
| Chestnut Ridge Railway | 5 | |
| Chicago and Alton Railroad | 25 | |
| Chicago and Alton Railway | 88 | 7 |
| Chicago and Atlantic Railway | 19 | 1 |
| Chicago and Eastern Illinois Railroad | 71 | 1 |
| Chicago and Erie Railroad | 19 | 2 |
| Chicago and Grand Trunk Railway | 26 | 2 |
| Chicago and Great Eastern Railroad | 7 | |
| Chicago and Great Eastern Railway | 7 | |
| Chicago and Iowa Railroad | 8 | 1 |
| Chicago and Kalamazoo Terminal Railroad | 5 | |
| Chicago and Lake Superior Railway | 6 | |
| Chicago and Milwaukee Railroad | 21 | 1 |
| Chicago and Northern Pacific Railroad | 8 | |
| Chicago and Northwestern Railway | 268 | 8 |
| Chicago and Ohio River Railroad | 6 | 1 |
| Chicago and Paducah Railroad | 5 | 1 |
| Chicago and Rock Island Railroad | 39 | 3 |
| Chicago and South Bend Railroad | 12 | |
| Chicago and South Eastern Railway | 10 | |
| Chicago and Wabash Valley Railway | 5 | |
| Chicago and West Michigan Railway | 20 | 2 |
| Chicago and Western Indiana Railroad | 23 | 1 |
| Chicago Great Western Railway | 64 | |
| Chicago Junction Railway | 13 | |
| Chicago Terminal Transfer Railroad | 12 | |
| Chicago, Alton and St Louis Railroad | 8 | |
| Chicago, Burlington and Kansas City Railway | 12 | |
| Chicago, Burlington and Northern Railroad | 18 | 1 |
| Chicago, Burlington and Quincy Railroad | 297 | 15 |
| Chicago, Danville and Vincennes Railroad | 6 | |
| Chicago, Fort Madison and Des Moines Railway | 5 | |
| Chicago, Indiana and Eastern Railway | 9 | |
| Chicago, Indianapolis and Louisville Railway | 24 | 1 |
| Chicago, Iowa and Nebraska Railroad | 28 | 3 |
| Chicago, Kalamazoo and Saginaw Railway | 5 | |
| Chicago, Kansas and Nebraska Railway | 8 | |
| Chicago, Lake Shore and Eastern Railway | 15 | |
| Chicago, Milwaukee and St Paul Railway | 270 | 7 |
| Chicago, Peoria and St Louis Railway | 11 | |
| Chicago, Peru and Cincinnati Railroad | 5 | |
| Chicago, Rock Island and El Paso Railway | 7 | |
| Chicago, Rock Island and Gulf Railway | 24 | |
| Chicago, Rock Island and Pacific Railway | 159 | 4 |
| Chicago, Rock Island and Texas Railway | 11 | |
| Chicago, Santa Fe and California Railway | 8 | |
| Chicago, St Anthony and Fond Du Lac Railroad | 19 | 1 |
| Chicago, St Louis and New Orleans Railroad | 10 | |
| Chicago, St Louis and Pittsburgh Railroad | 11 | |
| Chicago, St Paul and Kansas City Railway | 31 | |
| Chicago, St Paul, Minneapolis and Omaha Railway | 54 | 1 |
| Chickawsaha and Jackson Railroad | 5 | |
| Chihuahua and Pacific Railway | 8 | |
| Chippewa River and Menomonie Railway | 9 | |
| Choctaw Coal and Railway Company | 6 | |
| Choctaw, Oklahoma and Gulf Railroad | 19 | 1 |
| Cincinanti, Union and Fort Wayne Railroad | 14 | |
| Cincinnati and Chicago Railroad | 19 | |
| Cincinnati and Fort Wayne Railroad | 10 | |
| Cincinnati and Green River Railroad | 4 | |
| Cincinnati and Hillsboro Railroad | 8 | |
| Cincinnati and Indianapolis Junction Railroad | 7 | |
| Cincinnati and Licking River Railroad | 4 | |
| Cincinnati and Mackinaw Railroad | 7 | |
| Cincinnati and Muskingum Valley Railroad | 19 | 2 |
| Cincinnati and Westwood Railroad | 6 | |
| Cincinnati and Zanesville Railroad | 15 | 1 |
| Cincinnati Northern Railroad | 13 | 1 |
| Cincinnati Southern Railway | 15 | 1 |
| Cincinnati, Georgetown and Portsmouth Railroad | 11 | 1 |
| Cincinnati, Hamilton and Dayton Railroad | 18 | |
| Cincinnati, Hamilton and Dayton Railway | 76 | 5 |
| Cincinnati, Indianapolis St Louis and Chicago Railway | 10 | 1 |
| Cincinnati, Jackson and Mackinaw Railway | 14 | |
| Cincinnati, Lafayette and Chicago Railway | 4 | |
| Cincinnati, Lebanon and Northern Railway | 17 | 1 |
| Cincinnati, New Orleans and Texas Pacific Railway | 40 | 3 |
| Cincinnati, Peru and Chicago Railroad | 11 | |
| Cincinnati, Richmond and Muncie Railroad | 11 | |
| Cincinnati, Sandusky and Cleveland Railroad | 10 | |
| Cincinnati, Wabash and Michigan Railway | 8 | |
| Cincinnati, Washington and Baltimore Railroad | 4 | |
| Cincinnati, Wilmington and Zanesville Railroad | 8 | |
| Clarendon and Pittsford Railroad | 13 | 1 |
| Clearfield Southern Railroad | 5 | |
| Clendenin and Spencer Railroad | 5 | |
| Cleveland and Columbus Railroad | | 1 |
| Cleveland and Mahoning Railroad | 15 | |
| Cleveland and Marietta Railroad | 10 | 1 |
| Cleveland and Pittsburgh Railroad | 46 | 1 |
| Cleveland and Toledo Railroad | 57 | 3 |
| Cleveland, Akron and Columbus Railway | 21 | 1 |
| Cleveland, Canton and Southern Railroad | 5 | |
| Cleveland, Cincinnati, Chicago and St Louis Railway | 117 | 3 |
| Cleveland, Columbus and Cincinnati Railroad | 52 | |
| Cleveland, Columbus, Cincinnati and Indianapolis Railway | 35 | |
| Cleveland, Lorain and Wheeling Railroad | 11 | 2 |
| Cleveland, Painesville and Ashtabula Railroad | 35 | |
| Cleveland, Tuscarawas Valley and Wheeling Railway | 5 | |
| Cleveland, Zanesville and Cincinnati Railroad | 15 | |
| Clinton Line Extension Railroad | 10 | |
| Clinton Line Railroad | 8 | |
| Clyde and Sodus Bay Railroad | 14 | |
| Coahuila and Pacific Railroad | 11 | |
| Coahuila and Zacatecas Railway | 8 | |
| Coal and Coke Railway | | 1 |
| Colfax Northern Railroad | 3 | |
| Collins and Reidsville Railroad | 4 | |
| Colorado and Northwestern Railway | 6 | |
| Colorado and Southern Railway | 1122 | 3 |
| Colorado and Wyoming Railway | 11 | |
| Colorado Central Railroad | 4 | 1 |
| Colorado Eastern Railroad | 9 | |
| Colorado Midland Railway | 80 | 2 |
| Colorado Springs and Cripple Creek District Railway | 15 | |
| Columbia and Octoraro Railroad | 13 | |
| Columbia and Puget Sound Railroad | 9 | |
| Columbia Southern Railway | 10 | |
| Columbia, Newberry and Laurens Railroad | 6 | |
| Columbus and Cincinnati Midland Railroad | 7 | |
| Columbus and Eastern Railroad | 5 | |
| Columbus and Hocking Valley Railroad | 5 | |
| Columbus and Indianapolis Central Railway | 22 | |
| Columbus and Toledo Railroad | 5 | 1 |
| Columbus and Xenia Railroad | 22 | |
| Columbus, Chicago and Indiana Central Railroad | 5 | |
| Columbus, Hocking Valley and Toledo Railway | 25 | 2 |
| Columbus, Lima and Milwaukee Railroad | 3 | |
| Columbus, Piqua and Indiana Railroad | 26 | |
| Columbus, Sandusky and Hocking Railroad | 13 | |
| Columbus, Shawnee and Hocking Railway | 6 | |
| Columbus, Wellston and Southern Railroad | 5 | |
| Colusa and Lake Railroad | 7 | |
| Concord and Claremont Railroad | 9 | 2 |
| Concord and Montreal Railroad | 9 | |
| Concord and Portsmouth Railroad | 17 | |
| Concord Railroad | 35 | |
| Concord, Manchester and Lawrence Railroad | 13 | |
| Coney Island and Brooklyn Railway | | 1 |
| Connecticut and Passumpsic Rivers Railroad | 28 | |
| Connecticut River Railroad | 39 | 1 |
| Connecting Terminal Railroad | 7 | |
| Connotton Valley Railroad | 9 | |
| Contoocook River Railroad | 21 | 1 |
| Conway and Seashore Railroad | 4 | |
| Cooperstown and Charlotte Valley Railroad | 9 | |
| Copper Range Railroad | 10 | |
| Cornwall and Lebanon Railroad | 9 | |
| Cornwall Railroad | 6 | |
| Coronado Railroad | 8 | |
| Corvallis and Eastern Railroad | 6 | |
| Cotton Belt and Northern Railway | 4 | |
| Coudersport and Port Allegany Railroad | 7 | |
| Covington and Lexington Railroad | 22 | 1 |
| Crawford and Manistee River Railway | 5 | |
| Credit Valley Railway | 5 | |
| Crooked Creek Railroad and Coal Company | 5 | |
| Crown Point Iron Co and Railroad | 4 | |
| Crystal River Railroad | 8 | |
| Cumberland and Pennsylvania Railroad | 25 | |
| Cumberland Railway and Coal Company | 7 | |
| Cumberland Valley Railroad | 49 | 7 |
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