Bedrock geologic map of the Allentown West quadrangle, Lehigh and Berks counties, Pennsylvania /

Bibliographic Details
Corporate Author:	Geological Survey (U.S.)
Other Authors:	Drake, Avery Ala, 1927-
Format:	Government Document Map
Language:	English
Published:	Reston, VA : The Survey ; 1993.
Series:	Geologic quadrangle map ; GQ-1727.
Subjects:	Geology > Pennsylvania > Lehigh County > Maps. Geology > Pennsylvania > Berks County > Maps.

Description
Item Description:	Relief shown by contours and spot heights. Includes 3 col. cross sections, text, bibliography, 2 tables, and location map. Cartographic material.
Physical Description:	1 map : color ; 58 x 44 cm. on sheet 87 x 137 cm., folded in envelope 30 x 24 cm.