This uncommon map accompanied the "Report of Capt. R. Ingalls on the march of L. Col. Steptoe from Ft. Leavenworth to California" in 1854 and 1855. Wheat states "it is a document of first quality ….. showing three important routes." Steptoe was looking for a new and shorter route from the Great Salt Lake to the Pacific Coast. In addition to the route chosen by Steptoe, the routes of two detachments are also traced - one under Capt. Ingalls, the other by Lt. Mowry. The map extends to include all of California and part of Oregon to above the Rogue River. It stretches eastward to name G.S. Lake City, the Mormon capital of Fillmore, Cedar City and Fort Yuma on the Colorado.

References: Wheat (TMW) #868; Wagner & Camp #256.

Condition: B+

Issued folding with light toning along the folds and minor foxing. There is a binder's trim at lower left.