1. Mountain Materials & Reclamation 2300 Orsburn Ln, Joppa, MD 21085 Coordinate: 39.46351,-76.35457 Phone: (443) 271-7318
2. Harford Sands Inc 40 Fort Hoyle Rd, Joppa, MD 21085 Coordinate: 39.40237,-76.3271 Phone: (410) 679-9191