1. Schildberg Construction Co Inc 1773 115th St, Earlham, IA 50072 Coordinate: 41.48195,-94.08375 Phone: (515) 834-2230
2. Martin Marietta Aggregates 1802 120th St, Earlham, IA 50072 Coordinate: 41.46655,-94.08163 Phone: (515) 834-2525