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

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Bibliographic Details
Corporate author / creator:	Geological Survey (U.S.)
Edition:	Version 1.1, posted Oct. 2002.
Imprint:	Reston, Va. : U.S. Dept. of the Interior, U.S. Geological Survey, 2002.
Description:	1 electronic map : HTML, digital, PDF file.
Language:	English
Series:	Quaternary geologic atlas of the United States Miscellaneous investigations series / Department of the Interior, United States Geological Survey ; map I-1420 (NK-16) Miscellaneous investigations series (Geological Survey (U.S.)) ; map I-1420 (NK-16) Quaternary geologic atlas of the United States.
Subject:	Geology, Stratigraphic -- Quaternary -- Maps. Geology -- Lake States -- Maps.
Cartographic data:	Scale 1:1,000,000 ; Lambert conformal conic proj. (W 90⁰--W 84⁰/N 44⁰--N 40⁰).
Format:	E-Resource Map U.S. Federal Government Document
URL for this record:	http://pi.lib.uchicago.edu/1001/cat/bib/7140696

Hidden Bibliographic Details
Varying Form of Title:	Chicago 4⁰ x 6⁰ quadrangle, United States, quaternary geologic map
Other authors / contributors:	Lineback, Jerry A. (Jerry Alvin) Richmond, Gerald Martin, 1914- Fullerton, David S. Illinois State Geological Survey.
Notes:	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. Includes bibliographical references. 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.
GPO item no.:	0619-G-08 (online)
Govt.docs classification:	I 19.91:I-1420 (NK-16)/2002

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