The difference between the potentiometric surfaces of the lower Patapsco Aquifer in Southern Maryland, September 1990 and September ...

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Bibliographic Details
Corporate author / creator:	Geological Survey (U.S.), cartographer.
Imprint:	Reston, VA : U.S. Department of the Interior, U.S. Geological Survey ; [Annapolis, MD] : Maryland Department of Natural Resources
Description:	1 online resource (maps).
Language:	English
Series:	Open- file report U.S. Geological Survey open-file report.
Subject:	Aquifers -- Maryland, Southern -- Maps. Groundwater -- Maryland, Southern -- Maps. Water table -- Maryland, Southern -- Maps. Aquifers. Groundwater. Water table. Maryland, Southern. Maps.
Cartographic data:	Scale not given (W 77°20ʹ--W 76°00ʹ/N 39°30ʹ--N 38°00ʹ).
Format:	E-Resource Map U.S. Federal Government Document
URL for this record:	http://pi.lib.uchicago.edu/1001/cat/bib/11664926

Hidden Bibliographic Details
Other authors / contributors:	Maryland Geological Survey. Maryland. Power Plant Topical Research Program.
Frequency:	Biennial
Date / volume:	Began with 1997; ceased with 2009.
Notes:	Relief shown by contours and spot heights. Description based on: 1997; title from PDF title page (USGS, viewed July 23, 2009). Latest issue consulted: 2009 (viewed July 23, 2009).
GPO item no.:	0624-H (online)
Govt.docs classification:	I 19.76:P 27/3/

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