U.S. Geological Survey programs in Maryland and the District of Columbia.
Contributors: Geological Survey (U.S.)
Series: U.S. Geological Survey fact sheet -- FS-020-96.; Fact sheet (Geological Survey (U.S.)) -- FS-96-020.
Publisher: U.S. Dept. of the Interior, U.S. Geological Survey
Published: 1997
Place of publication: [Reston, Va.?]
Language: eng
Subjects: Geological surveys -- Maryland; Geological surveys -- Washington (D.C.); Hydrogeological surveys -- Maryland; Hydrogeological surveys -- Washington (D.C.); Acid rain -- Maryland; Acid rain -- Washington (D.C.)
Other titles: US Geological Survey programs in Maryland and the District of Columbia.
Notes: Caption title.

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