1. The difference between the potentiometric surfaces of the upper Patapsco Aquifer, September 1990 and September 1997 in Southern Maryland Author/Creator: Curtin, Stephen E. Publication/Creation: Denver, Colo. : Branch of Information Services [distributor]. Resource Type: Map Access & Availability: Loading
2. The difference between the potentiometric surfaces of the lower Patapsco Aquifer, September 1990 and September 1997 in Southern Maryland Author/Creator: Curtin, Stephen E. Publication/Creation: Denver, Colo. : Branch of Information Services [distributor]. Resource Type: Map Access & Availability: Loading
3. The difference between the potentiometric surfaces of the Aquia Aquifer, September 1982 and September 1997 in Southern Maryland Author/Creator: Curtin, Stephen E. Publication/Creation: Denver, Colo. : Branch of Information Services [distributor]. Resource Type: Map Access & Availability: Loading
4. The difference between the potentiometric surfaces of the Magothy Aquifer, September 1975 and September 1997 in Southern Maryland Author/Creator: Curtin, Stephen E. Publication/Creation: Denver, Colo. : Branch of Information Services [distributor]. Resource Type: Map Access & Availability: Loading
5. Potentiometric surface of the Aquia aquifer in southern Maryland, September 1989 Author/Creator: Geological Survey (U.S.), cartographer Publication/Creation: Towson, Maryland : Department of the Interior, U.S. Geological Survey, 1991 Resource Type: Map Access & Availability: Loading
6. Potentiometric surface of the Magothy aquifer in southern Maryland, September 1989 Author/Creator: Geological Survey (U.S.), cartographer Publication/Creation: Towson, Maryland : Department of the Interior, U.S. Geological Survey, 1991 Resource Type: Map Access & Availability: Loading
7. Potentiometric surface of the Aquia aquifer in southern Maryland during September 1988 Author/Creator: Geological Survey (U.S.), cartographer Publication/Creation: Towson, Maryland : Department of the Interior, U.S. Geological Survey, 1990 Resource Type: Map Access & Availability: Loading
8. The difference between the potentiometric surfaces of the Aquia aquifer of September 1986 and September 1988 in southern Maryland Author/Creator: Geological Survey (U.S.), cartographer Publication/Creation: Towson, Maryland : Department of the Interior, U.S. Geological Survey, 1990 Resource Type: Map Access & Availability: Loading
9. Potentiometric surface of the Magothy aquifer in southern Maryland during September 1988 Author/Creator: Geological Survey (U.S.), cartographer Publication/Creation: Towson, Maryland : Department of the Interior, U.S. Geological Survey, 1990 Resource Type: Map Access & Availability: Loading
10. Potentiometric surface of the Aquia aquifer in southern Maryland during the fall of 1987 Author/Creator: Geological Survey (U.S.), cartographer Publication/Creation: Towson, Maryland : Department of the Interior, U.S. Geological Survey, 1989 Resource Type: Map Access & Availability: Loading