Geologic map of the Hackett quadrangle, Washington County, Pennsylvania /

Bibliographic Details
Main Author:	Kent, Bion H. (Bion Huntley), 1925-
Corporate Author:	Geological Survey (U.S.)
Format:	Government Document Map
Language:	English
Published:	Washington : Geological Survey, 1967.
Series:	Geologic quadrangle map ; GQ-630.
Subjects:	Geology > Pennsylvania > Washington County > Maps.

Description
Item Description:	Relief shown by contours and spot heights. "Geology mapped in 1963-64." Cartographic material.
Physical Description:	1 map : color ; 58 x 44 cm.
Bibliography:	Includes col. cross section, columnar section, text and bibliographical references.