"1974 Southern Pacific - Cotton Belt Piggyback Ramps across the Golden Empire"1974-01-01unknownhttp://rightsstatements.org/vocab/NKC/1.0/enghttp://congressarchives.org/record/CAC_CC_001_9_0000_1_19The document provides a map of the Southern Pacific-Cotton Belt route, featuring piggyback ramps across states including Dakota, Minnesota, Wisconsin, South Dakota, Cotton Belt, Missouri, and Louisiana. It also highlights Los Angeles and its vicinity, and includes a legend and scale in statute miles. The map, copyrighted by Southern Pacific in 1974, was produced by Rand M Nally and Company.