Cooke's Canyon is named for Lt. Col. Philip St. George Cooke, who commanded the Mormon Battalion from Santa Fe to San Diego, California during the Mexican War. Their task was to establish a wagon road, which later was called Cooke's Wagon Road, and became the primary route used by the Southern Emigrant Trail. The Mormon Battalion crossed Cooke's Canyon on 17 November 1846.[2] The upper part of Cooke's Canyon is part of what was called Cooke's Pass, a narrow gap, running east and west, through which the Southern Emigrant Trail passed through Cooke's Range.[1]