Geologic map of the Laurium quadrangle, Michigan /

Bibliographic Details
Main Author:	Cornwall, Henry R. (Henry Rowland), 1913-
Corporate Author:	Geological Survey (U.S.)
Other Authors:	Wright, James C. (James Clifton), 1923-1968
Format:	Government Document Map
Language:	English
Published:	Washington, D.C. : U.S. Geological Survey, 1956.
Series:	Mineral investigations field studies map ; MF 47. Mineral investigations field studies (Geological Survey (U.S.)) ; map MF-47.
Subjects:	Geology > Michigan > Houghton County > Maps.

Description
Item Description:	Relief shown by contour lines and spot heights. "Geology compiled by H.R. Cornwall and J.C. Wright, 1954." Includes 2 cross sections and "Index map of the Keweenaw Peninsula, Michigan." Cartographic material.
Physical Description:	1 map ; 58 x 40 cm. folded in envelope 30 x 24 cm.