The Butterfield Overland Mail Route passed through Box Canyon, also called the Kearney Trail. Overland routed was called, Second Division's route, traveled from Fort Yuma to Warners Pass and followed the Sonora Road, an old Spanish and Mexican trail from Sonora, México, to San Diego. The Butterfield Overland route ran form 1857 to 1861. [2]
Box Canyon
A Historical marker is on Box Canyon road, also called the old road, and the Sonora, Colorado River road, now County Road S2, at Milepost 25.7, 8.6 Miles South of California State Route 78 in Anza-Borrego Desert State Park. The closest city is Julian, California, address of marker is 12001 County Hwy S2., also called the Great Southern Overland Stage Route.[3]