Ferricrete, manganocrete, and bog iron occurrences with selected sedge bogs and active iron bogs and springs in the upper Animas River watershed, San Juan County, Colorado /

Bibliographic Details
Main Author:	Yager, Douglas B.
Corporate Author:	Geological Survey (U.S.)
Format:	Government Document Map
Language:	English
Published:	Denver, Colo. : U.S. Dept. of the Interior, U.S. Geological Survey, 2003.
Edition:	Version 1.1.
Series:	Miscellaneous field studies ; map MF-2406.
Subjects:	Bogs > Colorado > San Juan County > Maps. Iron ores > Geology > Colorado > San Juan County > Maps. Manganese ores > Geology > Colorado > San Juan County > Maps.
Online Access:	https://purl.fdlp.gov/GPO/LPS30057

Description
Item Description:	Title from HTML index page (viewed Apr. 3, 2003). Includes text, col. ill., and index map. Electronic resource.
Physical Description:	1 electronic map : HTML, digital, PDF file.
Format:	Mode of access: Internet from the USGS web site. Address as of 5/19/08: http://pubs.usgs.gov/mf/2003/mf-2406/ ; current access via PURL.
Bibliography:	Includes bibliographical references.