Mineral Resource Map
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North America
United States
Iowa
Davis
Drill Hole
Past Producer • Zinc
Orill Hole
Past Producer • Zinc
Drill Hole
Past Producer • Zinc
Lewis Quarry
Producer • Stone, Crushed/Broken
Hootman Farm Quarry
Past Producer • Stone, Crushed/Broken
Unknown
Past Producer • Sand and Gravel, Construction
Nupp Quarry
Past Producer • Stone, Crushed/Broken
Welch Sandstone Quarry
Past Producer • Flagstone