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Highly detailed map of Railroad map of Colorado, from Cram's Standard American Railroad Atlas.

The map shows counties, railroads, railway stations, township surveys, mountains, rivers, lakes, and a host of other early details. Also shows county seats, Money Order Post Offices and other commerce details. 

Over 20 railroads shown in a color coding at the top left, including:

  • Aspen Contract Mining Co. Railroad
  • Atchison, Topeka & Santa Fe Railroad
  • Burlington & Missouri River Railroad
  • Chicago, Rock Island & Pacific Railroad
  • Colorado Midland Railroad
  • Crystal River Railroad
  • Denver, Lakewood & Golden Railroad
  • Denver, Leadville & Gunnison Railroad
  • Denver & Rio Grande Railroad
  • Eastern Colorado Railroad
  • Florence & Cripple Creek Railroad
  • Little Book Cliff Railroad
  • Manitou & Pikes Peak Railroad
  • Midland Terminal Railroad
  • Missouri Pacific Railroad
  • Rio Grande Southern Railroad
  • Rio Grande Western Railroad
  • Silverton Railroad
  • Stone Mountain Railroad
  • Union Pacific Railroad
  • Union Pacific, Denver & Gulf Railroad
George F. Cram Biography

George F. Cram (1842-1928), or George Franklin Cram, was an American mapmaker and businessman. During the Civil War, Cram served under General William Tecumseh Sherman and participated in his March to the Sea. His letters of that time are now important sources for historians of the Civil War. In 1867, Cram and his uncle, Rufus Blanchard, began the company known by their names in Evanston, Illinois.

Two years later, Cram became sole proprietor and the company was henceforth known as George F. Cram Co. Specializing in atlases, Cram was one of the first American companies to publish a world atlas. One of their most famous products was the Unrivaled Atlas of the World, in print from the 1880s to the 1950s.

Cram died in 1928, seven years after he had merged the business with that of a customer, E.A. Peterson. The new company still bore Cram’s name. Four years later, the Cram Company began to make globes, a branch of the business that would continue until 2012, when the company ceased to operate. For the final several decades of the company’s existence it was controlled by the Douthit family, who sold it just before the company was shuttered.