According to our records, this business is located at P.O. BOX 546 in Sunol (in Alameda County), California 94586, the location GPS coordinates are: 37.5943781 (latitude), -121.8885683 (longitude). RMC Lonestar is categorized under Masonry Cement (SIC code 3241). Known organization branch manager is Rich Biers. You can contact the company by phone at (925) 862-2201.