Geologic map of the Delaware quadrangle, Michigan : bedrock geology /

Bibliographic Details
Main Author:	Cornwall, Henry R. (Henry Rowland), 1913-
Format:	Government Document Map
Language:	English
Published:	Washington : U.S. Geological Survey, 1954.
Series:	Geological Survey (U.S.). Geologic quadrangle maps of the United States ; GQ-51
Subjects:	Geology > Michigan > Maps.

Description
Item Description:	"Contour interval 20 feet." Issued in envelope. Caption title, and title on envelope: Bedrock geology of the Delaware quadrangle, Michigan. Includes text and col. sections. Cartographic material.
Physical Description:	1 map : color ; 58 x 40 cm. on sheet 76 x 127 cm. folded to 30 x 24 cm.