Highly detailed map of the western territories beyond the Rocky Mountains, published immediately prior to the discovery of gold in California.
The cartography on the map primarily follows Fremont. This map represents one of the best topographical and geographical coverages of the west to appear in a mid-19th century atlas, surpassing the detail of Mitchell, Tanner, Morse and other atlas publishers of this era. The map has nice coverage in Oregon Territory as well, extending to Ft. Union on the Missouri. Many Colorado mountains are identified.
Salt Lake City is shown Neu Jerusalem. A number of mythical mountain ranges are shown in Nevada. An unusual New Mexico/Arizona configuration, with a stovepipe and truncation at the Gila River. Utah in a State of Deseret configuration extending well into Colorado.