Description: The difference between the potentiometric surfaces of the Magothy Aquifer in Southern Maryland, September 1975 and September 2007

Main Author:	Curtin, Stephen E.
Other Authors:	Andreasen, David C., Staley, Andrew W., Maryland Geological Survey., Maryland. Power Plant Topical Research Program., Geological Survey (U.S.), Maryland. Department of Natural Resources.
Format:	Electronic
Language:	English
Published:	Reston, VA : [Annapolis, MD] : U.S. Dept. of the Interior, U.S. Geological Survey ; Maryland Dept. of Natural Resources, [2009]
Physical Description:	1 map : digital, PDF file.
Series:	U.S. Geological Survey open-file report ; 2009-1083.
Subjects:	Aquifers -- Maryland, Southern -- Maps. Groundwater -- Maryland, Southern -- Maps. Water table -- Maryland, Southern -- Maps.
Online Access:	https://purl.fdlp.gov/GPO/LPS114762

Item Description:	Relief shown by contours and spot heights. Mode of access: Internet from the USGS web site. Address as of 7/14/09: http://pubs.usgs.gov/of/2009/1083/pdf/OFR2009-1083.pdf; current access is available via PURL. Title from title screen (viewed on July 14, 2009). GPO Cataloging Record Distribution Program (CRDP).
Physical Description:	1 map : digital, PDF file.
Format:	Mode of access: Internet from the USGS web site. Address as of 7/14/09: http://pubs.usgs.gov/of/2009/1083/pdf/OFR2009-1083.pdf; current access is available via PURL.