The making of America: central Rockies / 
National Geographic Society.Cartographic Division.
Washington, D.C. :  National Geographic Society, 
1984.
Contents: 1600-1869: fur and frontier; 1847-1896: mission to succeed; 1858-1900: mineral riches; 1900-present: lure of the mountains.
On verso: Central Rockies.
Supplement to National Geographic, Aug. 1984; vol. 166, no. 2.