Generalized bedrock geologic map of the Helena area, west-central Montana /

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Bibliographic Details
Author / Creator:	Reynolds, Mitchell W.
Edition:	Version 1.0, last modified 07-Aug-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:	U.S. Geological Survey water-resources investigation report ; 00-4212 Water-resources investigations report ; 00-4212.
Subject:	Geology, Structural -- Montana -- Helena Region -- Maps.
Cartographic data:	Scale 1:100,000 ; Universal transverse Mercator proj. (W 112⁰19ʹ--W 111⁰48ʹ/N 46⁰47ʹ--N 46⁰23ʹ).
Format:	E-Resource Map U.S. Federal Government Document
URL for this record:	http://pi.lib.uchicago.edu/1001/cat/bib/7469871

Hidden Bibliographic Details
Other authors / contributors:	Geological Survey (U.S.)
Computer file characteristics:	Electronic data and programs.
Notes:	Title from HTML index page (viewed Aug. 26, 2002). This online map is from a larger, in-print report, published in 2000: "Hydrology of Helena area bedrock, west-central Montana, 1993-98 with a section on geologic setting and a generalized bedrock geologic map", by Joanna N. Thamke and Mitchell W. Reynolds." Mode of access: Internet from the USGS web site. Address as of 11/17/08: http://pubs.usgs.gov/wri/wri-00-4212/; current access via PURL.
GPO item no.:	0624-B (online)
Govt.docs classification:	I 19.42/4:00-4212

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