The CG Railway is a terminal railroad as reported by the Association of American Railroads. The CGR is headquartered in Mobile, Alabama, and is owned and operated by a 50/50 joint venture between SEACOR Holdings and Genesee & Wyoming. The railroad operates an approximate 900-mile train ferry between the Port of Mobile at Mobile, Alabama, and the Port of Coatzacoalcos in Coatzacoalcos, Veracruz. It began operations in 2000 out of Mobile, Alabama. In 2004 the railroad moved its American port to New Orleans, Louisiana. The Port of New Orleans facility was heavily damaged by Hurricane Katrina in 2005. In 2007 the Alabama State Port Authority agreed to construct a state of the art $19 million rail-ferry terminal at the Port of Mobile. The CGR connects with CSX Transportation, Norfolk Southern, BNSF Railway, Canadian National Railway, and Alabama and Gulf Coast Railway all at Mobile, Alabama, and Ferrocarril del Sureste at Coatzacoalcos, Veracruz.

The Port of Mobile is a deep-water port in Mobile, Alabama, United States. It is the only deep-water port in Alabama. It was ranked by the United States Army Corps of Engineers as the 9th largest port by tonnage in the nation during 2014, with a trade volume of 64.3 million tons. This ranking had increased from 12th largest during 2010, with a trade volume of 55,713,273 tons, an increase of 19.1%.