Today the CSX is one of seven remaining Class I freight railroads <ref>http://www.american-rails.com/class-i-railroads.html</ref> in the United States and Canada, along with Norfolk Southern, [[Burlington Northern Santa Fe]], Kansas City Southern, Union Pacific, Canadian National Railway, and Canadian Pacific Railway. Most of the other well known railroad lines have merged into one of these seven remaining Class I lines. | Today the CSX is one of seven remaining Class I freight railroads <ref>http://www.american-rails.com/class-i-railroads.html</ref> in the United States and Canada, along with Norfolk Southern, [[Burlington Northern Santa Fe]], Kansas City Southern, Union Pacific, Canadian National Railway, and Canadian Pacific Railway. Most of the other well known railroad lines have merged into one of these seven remaining Class I lines. |