1. Robertsons 2820 E Main St, Barstow, CA 92311 Coordinate: 34.87834,-116.969 Phone: (760) 252-3411
2. Best Rock Quarry 26282 Neuman Rd, Barstow, CA 92311 Coordinate: 34.91872,-117.08895 Phone: (760) 253-7625