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IS-22 Annotated Bibliography of Subsidence Studies over Abandoned Coal Mines in Colorado [2010 update]
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IS-26 Reconnaissance Study of Coal Fires in Inactive Colorado Coal Mines
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OF-87-03 Tri-Towns Subsidence Investigation, Weld County, Colorado
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SP-31 Proceedings of the 1985 Conference on Coal Mine Subsidence in the Rocky Mountain Region
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SP-26 Subsidence above Inactive Coal Mines: Information for the Homeowner
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EG-09 Coal Mine Subsidence and Land Use in the Boulder-Weld Coalfield: Boulder and Weld Counties, Colorado
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