Difference between the potentiometric surfaces of the Aquia Aquifer of ... and ... in southern Maryland /

Bibliographic Details
Corporate Authors:	Geological Survey (U.S.), Maryland. Tidewater Administration, Maryland Geological Survey
Format:	Government Document Microform Map Serial
Language:	English
Published:	Towson, Md. : U.S. Geological Survey ;
Series:	U.S. Geological Survey open-file report.
Subjects:	Groundwater > Maryland, Southern > Maps. Aquifers > Maryland, Southern > Maps. Magothy Aquifer > Maps.

Description
Item Description:	Potentiometric contours. "Base from USGS Digital line graph, 250,000." Shipping list number: 95-0614. Sept. 1982 and Sept. 1993, 94-394. Coordinates for map based on: Sept. 1990. Description based on: Sept. 1990. Microform.
Physical Description:	maps ; 22 x 17 cm.
Publication Frequency:	Biennial