Originally long, the western trailhead began east of San Bernardino in the San Gorgonio Pass. Bradshaw and his party traveled southeast through Agua Caliente, now Palm Springs, and then South to the village of where the Torres Martinez Indian Reservation is now located. There Bradshaw was befriended by Cabazon, a chief of the Cahuilla Indians of the Salton Sink, and a Maricopa from Arizona who was visiting the Cahuilla villages. They provided Bradshaw with the knowledge of the route of their ancient trade route through the Colorado Desert, including the location of springs and water holes.