Water quality in the Appalachian Valley and Ridge, the Blue Ridge, and the Piedmont physiographic provinces, eastern United States
By: by L.I. Briel.
Series: Regional aquifer-system analysis--Appalachian Valley and Piedmont ;; D; U.S. Geological Survey professional paper ;; 1422
Publisher: U.S. Dept. of the Interior, U.S. Geological Survey
Published: 1997
Place of publication: [Washington, DC]
Language: eng
Number of pages: 115
Subjects: Water quality -- Appalachian Region.
Notes: Includes bibliographical references (p. 94-100).
One folded colored map in pocket.