Hydrogeologic atlas, Hereford quadrangle, Baltimore County, Maryland /

Bibliographic Details
Main Author:	Duigon, Mark T.
Corporate Authors:	Geological Survey (U.S.), Baltimore County (Md.). Department of Planning and Zoning, Photo Science Inc
Other Authors:	Hilleary, John T.
Format:	Map
Language:	English
Published:	[Baltimore, Md.] : Maryland Geological Survey, 1981.
Series:	Hydrogeologic atlas / Maryland Geological Survey Quadrangle atlas / Maryland Geological Survey ; no. 18
Subjects:	Groundwater > Maryland > Baltimore County > Maps. Slopes (Physical geography) > Maryland > Baltimore County > Maps.

Description
Item Description:	Booklet title: Hereford quadrangle, hydrology by Mark T. Duigon and John T. Hilleary. Text, figures, and bibliographies on sheets. "Prepared by Photo Science, Inc., Gaithersburg Maryland. Utilizing contour negatives, furnished by United States Geological Survey." "Prepared in cooperation with the United States Geological Survey and the Baltimore County Department of Planning and Zoning." Cartographic material.
Physical Description:	5 maps : on 5 sheets, color ; 58 x 45 cm., or smaller, on sheets 71 x 92 cm., on smaller, folded in envelope 21 x 26 cm. + 1 booklet (6 pages ; 23 cm.)