Map of the State of Illinois showing areal type classification for wells in the Illinois coal basin
By: prepared by E.F. Taylor and G.H. Cady
Contributors: Cady, Gilbert H. (Gilbert Haven), b. 1882, joint author
Series: Illinois State Geological Survey. Circular -- 85; Circular (Illinois State Geological Survey) -- 85.; Circular (Illinois State Geological Survey) -- no. 85.
Published: 1942
Place of publication: Urbana
Language: eng
Subjects: Maps; Oil fields; Geology