Subject
Coal mines and mining Environmental aspects
Water quality
Strip mining Environmental aspects
8
Groundwater
7
Coal mines and mining
3
Groundwater Quality
3
Hydrology
3
Water-supply
3
Acid mine drainage Environmental aspects
2
Coal Geology
2
Geochemistry
2
Geology
2
Groundwater Pollution
2
Mine drainage Environmental aspects
2
Reclamation of land
2
Reclamation of land Environmental aspects
2
Stream measurements
2
Streamflow
2
Tongue River (Wyo. and Mont.)
2
Water Pollution
2
Water chemistry
2
Water quality bioassay
2
Appalachian Region Environmental conditions
1
Coal mine waste
1
Coal mines and mining History
1
Electric power production Environmental aspects
1
Fossil fuels
1
Geology, Structural
1
Hydrological forecasting
1
Information storage and retrieval systems Water quality
1
Lakes
1
Land use Environmental aspects
1
Landscape ecology
1
Mines and mineral resources
1
Natural resources Management
1
Reservoirs
1
Sewage Environmental aspects
1
Water table
1