1. L & M Ready Mix Svc 7478 Olive Tree Ln, Highland, CA 92346 Coordinate: 34.11807,-117.21504 Phone: (909) 693-6716
2. R & B Ready Mix 27155 Crest St, Highland, CA 92346 Coordinate: 34.11818,-117.21194 Phone: (909) 864-7603