Box Canyon in Anza-Borrego Desert State Park in San Diego County, is a California Historical Landmark No.

The US troops under General Stephen Watts Kearny and with US scout Kit Carson found Box Canyon and its pass in October 1846.

On January 19, 1847, Kearny was the leader of a wagon train with Colonel Philip St. George Cooke and the Mormon Battalion that used Box Canyon to head west.

The group used hand tool to widen and clear Box Canyon so the covered wagons could pass.

The closest city is Julian, California, address of marker is 12001 County Hwy S2., also called the Great Southern Overland Stage Route.