41. 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
42. Ground-water levels in the lower Paleozoic and Precambrian crystalline rocks, of East Bradford and West Bradford townships, Chester County, Pennsylvania, July and August 1987 Author/Creator: Geological Survey (U.S.), cartographer Publication/Creation: [Reston, Va.] : Department of the Interior, U.S. Geological Survey, 1988 Resource Type: Map Access & Availability: Loading
43. Ground-water levels in the lower Paleozoic and Precambrian crystalline rocks, southeastern Chester County, Pennsylvania, July and August 1986 Author/Creator: Geological Survey (U.S.), cartographer Publication/Creation: [Reston, Va.] : United States Department of the Interior, Geological Survey, 1987 Resource Type: Map Access & Availability: Loading
44. 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
45. Ground-water levels in three basalt hydrologic units underlying the Columbia Plateau, Washington and Oregon, spring 1984 Author/Creator: Geological Survey (U.S.), cartographer Publication/Creation: Reston, Virginia : Department of the Interior, United Stattes Geological Survey, 1986 Resource Type: Map Access & Availability: Loading
46. Ground-water levels spring 1985, and ground-water level changes spring 1983 to spring 1985, in three basalt units underlying the Columbia Plateau, Washington and Oregon Author/Creator: Geological Survey (U.S.), cartographer Publication/Creation: Tacoma, Washington : Department of the Interior, United States Geological Survey, 1989 Resource Type: Map Access & Availability: Loading
47. Ground-water recharge in Escambia and Santa Rosa Counties, Florida Author/Creator: Geological Survey (U.S.), cartographer Publication/Creation: Tallahassee, Florida : U.S. Department of the Interior, U.S. Geological Survey, 1995 Resource Type: Map Access & Availability: Loading
48. Ground-water resources and contamination at Kwajalein Island, Republic of the Marshall Islands, 1990-91 Author/Creator: Geological Survey (U.S.), cartographer Publication/Creation: Honolulu, Hawaii : U.S. Department of the Interior, U.S. Geological Survey, 1996 Resource Type: Map Access & Availability: Loading
49. Ground-water resources and contamination at Roi-Namur Island, Kwajalein Atoll, Republic of the Marshall Islands, 1990-91 Author/Creator: Geological Survey (U.S.), cartographer Publication/Creation: Honolulu, Hawaii : U.S. Department of the Interior, U.S. Geological Survey, 1996 Resource Type: Map Access & Availability: Loading
50. Ground-water resources at Diego Garcia, 1985-96 Author/Creator: Geological Survey (U.S.), cartographer Publication/Creation: Reston, Virginia : U.S. Department of the Interior, U.S. Geological Survey, 2001 Resource Type: Map Access & Availability: Loading