Charles Desilver. "A New Map of the State of California, The Territories of Oregon, Washington, Utah & New Mexico".
Philadelphia: Charles Desilver, 1856. 16 x 12 3/4. Lithograph. Original hand color. Very good condition.
Charles Desilver, one of the many publishers working in Philadelphia during the mid-nineteenth century, issued an atlas of maps based on the famous Tanner-Mitchell-Cowperthwait series. Desilver used much the same information as originally drawn in the 1840s, but updated the maps with new counties, roads, towns, etc. Here the country west of the Rockies is depicted with the state of California and the rest comprised of just four territories: Washington, Oregon, Utah and New Mexico. Settlement in those territories was quite sparse at the time, with some cities shown, and a number of counties developed in the western part of the northern most territories. The map was issued just after the Gadsden Treaty (1854) so the current southern border with Mexico is depicted. Of note are depictions of the southern route proposed for the Pacific Railroad, the Spanish trail from Santa Fe to Los Angeles, the routes of Lewis & Clark and Fremont, and the Oregon Trail. Forts are indicated, as are the territories of various Indian tribes. Of interest is the small section entitled "Middle Park," which is shown as part of Utah, but which is currently part of Colorado.