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Mining methods of the Fort Dodge Limestone Company, Inc., Fort Dodge, Iowa

Sand and gravel operations and costs, Minneapolis-St. Paul area, Minn.

Sand and gravel operations and costs, Concrete Materials and Construction Division, Martin Marietta Corp., West Des Moines, Iowa

Mining and beneficiating methods and costs at two crushed- limestone operations, Madison County, Iowa

Published Year

• 1960-1969 (4) *

Subject

• Limestone--Iowa (2)
• Gravel (1)
• Sand and gravel industry--Iowa (1)
• Sand and gravel industry--Minnesota--Minneapolis-St. Paul area (1)

Author

• Marshall, Lawrence G. (4) *

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