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 Decade: 1870-1879
 Collection: Where the West Begins: Capturing Fort Worth's Historic Treasures
 Collection: Map Collections from the University of Texas at Arlington
Central Colorado Sheet, 1877
Map of central Colorado in 1877. Printed at the top of the map is, "U.S. Geological and Geographical Survey of the Territories, F.V. Hayden in Charge. Central Colorado."