Towson, Maryland : U.S. Department of the Interior, U.S. Geological Survey, 1985
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Map
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Full Title:
Preliminary map showing the potentiometric surface of the Aquia aquifer in southern Maryland, September 1984 / by Frederick K. Mack, Judith C. Wheeler, Stephen E. Curtin, and David C. Andreasen
Relief shown by contours and spot heights. Title from title screen (viewed Feb. 4, 2016). Also available online in PDF format from the U.S. Geological Survey Warehouse (http://pubs.er.usgs.gov/). "Prepared in cooperation with Maryland Geological Survey and Maryland Energy Administration."