Colton's New Railroad & County Map of the United States, the Canadas, &c. New York: J.H. Colton, 1862. Dissected folding map with full color, counties marked as far west as eastern Texas, Kansas and Nebraska. 32.5 x 38.5 in. (sight), framed, 35.5 x 46.5 in. Inserts of South Florida and "Map of the United States Showing the Proposed Railroad Routes to the Pacific Ocean." It was in 1862 that the Pacific Railroad Act, signed by Lincoln, chartered the Central Pacific and Union Pacific Railroad companies to build a transcontinental railroad linking the east with the Pacific. They would meet, of course, at Promontory, Utah on May 10, 1869, just 150 years ago.