Economic geology sheet :[Chicago and vicinity].

Title:: Economic geology sheet :[Chicago and vicinity].
Item Identifier:: maps-0085
Publisher(s):: U.S. Geological Survey
Language:: English
Location:: Illinois -- Chicago Region
Subject:: Geology
Date:: 1902
Type:: Maps
Description:: Each sheet includes 1890s survey date.
Relief on base maps shown by contours and spot heights.
Rights:: https://rightsstatements.org/vocab/NoC-US/1.0/
Permanent URL:: https://ark.lib.uchicago.edu/ark:61001/b26z8nw0bj12
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