| http://www.w3.org/ns/prov#value | - Where bats are present, BLM uses bat gates that allow them to use the adit for habitat;Closing vertical openings (shafts) either by filling them, or by covering them with little roofs (cupolas); and/orRemoving and properly disposing hazards such as mining and milling equipment, oil and chemical drums, and other debris.BLM addresses environmental hazards associated with abandoned mine sites by:Redi
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