41. Approximate potentiometric surface for the aquifer unit A4, southeastern coastal plain aquifer system of the United States, prior to development Author/Creator: Geological Survey (U.S.), cartographer Publication/Creation: Denver, Colorado : Open-File Services Section, Western Distribution Branch, U.S. Geological Survey Resource Type: Map Access & Availability: Loading
42. Geohydrology of the Irondequoit Creek Basin near Rochester, New York Author/Creator: Geological Survey (U.S.), cartographer Publication/Creation: Denver, Colorado : Open-File Services Section, Western Distribution Branch, U.S. Geological Survey Resource Type: Map Access & Availability: Loading
43. Ground-water levels in the Cockeysville marble of southern Chester County, Pennsylvania, 1983-84 Author/Creator: Geological Survey (U.S.), cartographer Publication/Creation: Reston, Virginia : United States Department of the Interior, Geological Survey, 1985 Resource Type: Map Access & Availability: Loading
44. Ground-water levels in the Columbia River basalt and overlying materials, Spring 1983, southeastern Washington state Author/Creator: Geological Survey (U.S.), cartographer Publication/Creation: Denver, Colorado : Open-File Services Section, Western Distribution Branch, U.S. Geological Survey Resource Type: Map Access & Availability: Loading
45. Ground-water levels in the Lower Paleozoic carbonate rocks of western Chester Valley, Chester County, Pennsylvania, November 1984 Author/Creator: Geological Survey (U.S.), cartographer Publication/Creation: [Reston, Va.] : United States Department of the Interior, Geological Survey, 1985 Resource Type: Map Access & Availability: Loading
46. Hydrogeology of the Clifton Park area, Saratoga County, New York Author/Creator: Geological Survey (U.S.), cartographer Publication/Creation: Denver Colorado : Open-File Services Section, Western Distribution Branch, U.S. Geological Survey Resource Type: Map Access & Availability: Loading
47. Hydrology of Lake Butler, Orange County, Florida Author/Creator: Geological Survey (U.S.), cartographer Publication/Creation: [Tallahassee, Florida] : Department of the Interior,United States Geological Survey, 1985 Resource Type: Map Access & Availability: Loading
48. Hydrology of Lake June in Winter, Highlands County, south-central Florida Author/Creator: Geological Survey (U.S.), cartographer Publication/Creation: Denver, Colorado : Open-File Services Section, Western Distribution Branch, U.S. Geological Survey Resource Type: Map Access & Availability: Loading
49. Maps of the Bonsall area of the San Luis Rey River Valley, San Diego County, California showing geology, hydrology, and ground-water quality Author/Creator: Geological Survey (U.S.), cartographer Publication/Creation: Denver, Colorado : Open-File Services Section, Western Distribution Branch, U.S. Geological Survey Resource Type: Map Access & Availability: Loading
50. Maps of the Bonsall area of the San Luis Rey River Valley, San Diego County, California showing geology, hydrology, and ground-water quality Author/Creator: Geological Survey (U.S.), cartographer Publication/Creation: [Sacramento, Calif.] : Department of the Interior, United States Geological Survey, 1985 Resource Type: Map Access & Availability: Loading