"Plate no.XXXI"., Relief shown by hachures., and Shows ore in crevices, flats, and pitches in the Lafayette and Iowa counties in Wisconsin and the surrounding region.
Publisher:
Wisconsin Geological Survey,
Subject (Name):
Wisconsin. Geological Survey
Subject (Topic):
Lead mines and mining--Illinois--Maps, Lead mines and mining--Wisconsin--Maps, Lead--Illinois--Maps, and Lead--Wisconsin--Maps