21. Potentiometric surface of the alluvial aquifer and hydrologic conditions near Caguas, Puerto Rico, March 1988 Author/Creator: Geological Survey (U.S.), cartographer Publication/Creation: San Juan, Puerto Rico : Department of the Interior, U.S. Geological Survey, 1989 Resource Type: Map Access & Availability: Loading
22. Potentiometric surface of the alluvial aquifer and hydrologic conditions near Gurabo and Juncos, Puerto Rico, March 1988 Author/Creator: Geological Survey (U.S.), cartographer Publication/Creation: San Juan, Puerto Rico : U.S. Department of the Interior, U.S. Geological Survey, 1990 Resource Type: Map Access & Availability: Loading
23. 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
24. Potentiometric surface of the Aquia aquifer in southern Maryland during the Fall of 1986 Author/Creator: Mack, Frederick K., author Publication/Creation: Towson, Maryland : Department of the Interior, U.S. Geological Survey, 1987 Resource Type: Map Access & Availability: Loading
25. 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
26. The Potentiometric surface of the Aquia aquifer in southern Maryland, September 1985 Author/Creator: Mack, Frederick K., author Publication/Creation: Towson, Maryland : Department of the Interior, U.S. Geological Survey, 1987 Resource Type: Map Access & Availability: Loading
27. 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
28. Potentiometric surface of the Black Creek aquifer in the central coastal plain of North Carolina, December 1986 Author/Creator: Geological Survey (U.S.), cartographer Publication/Creation: Raleigh, North Carolina : Department of the Interior, U.S. Geological Survey, 1989 Resource Type: Map Access & Availability: Loading
29. Potentiometric surface of the Edwards-Trinity aquifer system and contiguous hydraulically connected units, west-central Texas, winter, 1974-75 Author/Creator: Geological Survey (U.S.), cartographer Publication/Creation: Austin, Texas : Department of the Interior, U.S. Geological Survey, 1990 Resource Type: Map Access & Availability: Loading
30. Potentiometric surface of the Floridan aquifer and its use in management of water resources, St. Johns River Water Management District, Florida Author/Creator: Geological Survey (U.S.), cartographer Publication/Creation: Tallahassee, Florida : U.S. Department of the Interior, U.S. Geological Survey, 1983 Resource Type: Map Access & Availability: Loading
31. Potentiometric surface of the Floridan aquifer system in the Northwest Florida Water Management District, May 1985 Author/Creator: Rosenau, Jack C., author Publication/Creation: Tallahassee, Florida : Department of the Interior, U.S. Geological Survey, 1986 Resource Type: Map Access & Availability: Loading
32. Potentiometric surface of the Floridan aquifer system in the Suwannee River Water Management District, Florida, May 1985 Author/Creator: Rosenau, Jack C., author Publication/Creation: Tallahassee, Fla : Department of the Interior, U.S. Geological Survey, 1986 Resource Type: Map Access & Availability: Loading
33. Potentiometric surface of the Kings Hill aquifer and hydrologic conditions in Saint Croix, U.S. Virgin Islands, July 1987 Author/Creator: Geological Survey (U.S.). Water Resources Division. Caribbean District, cartographer Publication/Creation: San Juan, Puerto Rico : U.S. Geological Survey, Water Resources Division, Caribbean District, 1990 Resource Type: Map Access & Availability: Loading
34. Potentiometric surface of the Lower Cape Fear aquifer in the central coastal plain of North Carolina, December 1986 Author/Creator: Geological Survey (U.S.), cartographer Publication/Creation: Raleigh, North Carolina : U.S. Department of the Interior, U.S. Geological Survey, 1989 Resource Type: Map Access & Availability: Loading
35. 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
36. Potentiometric surface of the Magothy aquifer in southern Maryland during the Fall of 1986 Author/Creator: Mack, Frederick K., author Publication/Creation: Towson, Maryland : U.S. Department of the Interior, U.S. Geological Survey, 1987 Resource Type: Map Access & Availability: Loading
37. Potentiometric surface of the Magothy 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
38. The Potentiometric surface of the Magothy Aquifer in southern Maryland, September 1985 Author/Creator: Mack, Frederick K., author Publication/Creation: Towson, Maryland : Department of the Interior, U.S. Geological Survey, 1987 Resource Type: Map Access & Availability: Loading
39. 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
40. Potentiometric surface of the Peedee aquifer in the central coastal plain of North Carolina, December 1986 Author/Creator: Geological Survey (U.S.), cartographer Publication/Creation: Raleigh, North Carolina : Department of the Interior, U.S. Geological Survey, 1989 Resource Type: Map Access & Availability: Loading