1. Vulcan Materials Co 4060 Quarry Hill Rd, Rockville, VA 23146 Coordinate: 37.70002,-77.64497 Phone: (804) 360-2014
2. Ready Mixed Concrete Co 1940 Ashland Rd, Rockville, VA 23146 Coordinate: 37.68769,-77.66678 Phone: (804) 355-7851