Hilton Head IslandUnknown • Zirconium, Titanium, Thorium
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Cleckley Number 5Past Producer • Sand and Gravel, Construction
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Gumtree Road PitPast Producer • Sand and Gravel, Construction
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Unnamed Clay Pit.Unknown • Clay
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Coosawhatchee Region Deposits.Prospect • Phosphorus-Phosphates
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Hilton Head Island DepositPast Producer • REE
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Ward #1 MineUnknown • Sand
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