Cover Image

Geologic map of the Topton 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 ; 1987.
Series:Geologic quadrangle map ; GQ-1609.
Subjects:
Geology > Pennsylvania > Lehigh County > Maps.
Geology > Pennsylvania > Berks County > Maps.
Description
Item Description:Relief shown by contours and spot heights.
"Geology mapped in 1969-1971 and 1977."
Includes text, bibliography, 3 figures, and 2 col. cross sections, and location map.
Cartographic material.
Physical Description:1 map : color ; 58 x 44 cm., on sheet 98 x 107 cm., folded in envelope 30 x 24 cm.
Bibliography:Includes text, bibliography, 3 figures, and 2 col. cross sections, and location map.