EarthWorks Geospatial Catalog

Quaternary Deposits: Illinois, 1996

Author(s)
Description
This feature dataset is a generalized version of Quaternary Deposits of Illinois. Updated to reflect the areal distribution of the Wedron and Mason Groups (Wisconsin and Hudson Episodes) and deposits of the Illinoian and pre-Illinoian episodes in Illinois as described in ISGS Bulletin 104. Episodes are diachronic temporal units. Refer to the primary sources for more information. Scale is 1:2,500,000.
Collection
Illinois Geospatial Data Clearinghouse
Place(s)
Illinois, United States
Subject(s)
Geoscientific Information and Geology
Year
1996
Held by
Illinois
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