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Quaternary geologic map of the Chicago 4⁰ x 6⁰ quadrangle, United States /

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Bibliographic Details
Corporate Authors: Geological Survey (U.S.), Illinois State Geological Survey
Other Authors: Lineback, Jerry Alvin, Richmond, Gerald Martin, 1914-, Fullerton, David S.
Format: Government Document Map
Language:English
Published: Reston, Va. : U.S. Dept. of the Interior, U.S. Geological Survey, 2002.
Edition:Version 1.1, posted Oct. 2002.
Series:Quaternary geologic atlas of the United States.
Miscellaneous investigations series (Geological Survey (U.S.)) ; map I-1420 (NK-16)
Subjects:
Geology, Stratigraphic > Quaternary > Maps.
Geology > Lake States > Maps.
Online Access:https://purl.fdlp.gov/GPO/LPS93616
Description
Item Description:Relief shown by contours and spot heights.
Depths shown by isolines and soundings.
Title from PDF title screen (viewed on Apr. 29, 2008).
Covers parts of Illinois, Indiana, Michigan, Ohio and Wisconsin.
Includes text and ancillary maps.
Electronic resource.
Physical Description:1 electronic map : HTML, digital, PDF file.
Format:Mode of access: Internet from the USGS web site. Address as of 4/29/08: http://pubs.usgs.gov/imap/i-1420/nk-16/ ; current access via PURL.
Bibliography:Includes bibliographical references.