Geologic map of Illinois /

Bibliographic Details
Main Author:	Willman, H. B. (Harold Bowen), 1901-
Corporate Author:	Illinois State Geological Survey
Format:	Map
Language:	English
Published:	Urbana : Illinois State Geological Survey, 1967.
Subjects:	Geology > Illinois > Maps.

Description
Item Description:	"Lambert conformal conic projection, standard parallels 33 ̊and 45.̊" "Base map by U.S. Geological Survey." Includes 2 col. stratigraphic sections and 3 col. cross sections. Insets: Structure on top of Galena group, and index to cross sections.-- Glacial map.-- Thickness of surficial deposits.-- Sub-St. Peter geologic map.-- Sub-Middle and Upper Devonian geologic map.-- Sub-Pennsylvanian geologic map. Cartographic material.
Physical Description:	color map ; 142 x 101 cm. folded in envelope 31 x 23 cm.