Geological structure of the zinc-lead district of northwestern Illinois
By: by H.B. Willman and R.R. Reynolds
Contributors: Reynolds, Robert Ramon, author
Series: Illinois State Geological Survey Report of investigations -- no. 124; Report of investigations (Illinois State Geological Survey) -- no. 124.
Publisher: State Geological Survey
Published: 1947
Place of publication: Urbana, Ill
Language: eng
Number of pages: 15
Subjects: Lead mines and mining; Zinc mines and mining; Geology