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.

Evans: Maps File (2nd floor)