Mexican Railroad Systems Map. DeskMap Systems, Inc, 2004. The 36" x 44" full-color Railroads of Mexico map includes recent acquisitions and privatization of the rail in Mexico. Rail is color-coded to reflect ownership. Detail includes state boundaries, thousands of indexed cities, ports served by rail and intermodal hubs. The color map also displays connections in the U.S. and South America. This map will be extremely beneficial to any company doing business with Mexico or transporting through the country.