Bedrock geologic map of the Ipswich quadrangle, Essex County, Massachusetts /

Bibliographic Details
Corporate Authors: Geological Survey (U.S.), Massachusetts. Department of Public Works
Other Authors: Dennen, William H.
Format: Government Document Map
Language:English
Published: Reston, Va. : The Survey ; 1991.
Series:Geologic quadrangle map ; GQ-1698.
Subjects:
Description
Item Description:Relief shown by contours and spot heights.
Depths shown by isolines and soundings.
"Geology mapped in 1968-69, 1971."
Includes text, bibliography, quadrangle location map, and col. cross section.
Cartographic material.
Physical Description:1 map : color ; 58 x 43 cm., on sheet 86 x 101 cm., folded in envelope 30 x 24 cm.