US550 and Cabazon Rd. The first 4 miles off US550 is BIA land, you must keep going to get to BLM land. I saw about a half dozen locations to camp. Dirt road all the way and some rough spots along the way. I took a 34 ft 5th wheel in but if you dont feel confident with your ability you may pass. I went in about 9-10 miles off highway and camped about 2/10ths of a mile from a parking lot for a walking trail. Very peacefull and great night stars. There are a couple of hiking trails nearby and even a mountain bike trail. I had 3 to 4 bars of Verizon cell service.