1. Iron Hill Quarry 15818 145th Ave, Maquoketa, IA 52060 Coordinate: 42.169582,-90.73115 Phone: (563) 652-6025
2. Wendling Quarries 23868 150th St, Maquoketa, IA 52060 Coordinate: 42.1569,-90.62203 Phone: (563) 652-2221