Rock_&_Rail
Rock & Rail
Railroad in Colorado
Rock and Rail (reporting mark RRRR) is a short line railroad operating in southern Colorado that is currently a subsidiary of Martin Marietta Materials.[1] The company began operations in July 1988.[2]
Railroad in Colorado
Rock and Rail (reporting mark RRRR) is a short line railroad operating in southern Colorado that is currently a subsidiary of Martin Marietta Materials.[1] The company began operations in July 1988.[2]
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