[Reston, Va.?] : U.S. Dept. of the Interior, U.S. Geological Survey, 2002
Resource Type:
Map
Edition:
Version 1.0, last modified 07-Aug-2002.
More Details
Additional/Related Title Information
Full Title:
Generalized bedrock geologic map of the Helena area, west-central Montana / by Mitchell W. Reynolds ; U.S. Department of the Interior, U.S. Geological Survey
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.
General Note:
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."