Gold investigations in Precambrian clastic and pelitic rocks, southwestern Colorado and northern New Mexico / by Fred Barker.
- Physical Description: 1 online resource (iii, 22 pages) : illustrations.
- Publisher: [Washington, D.C.] : United States Department of the Interior, Geological Survey, 1969.
- Distributor: Washington : United States Government Printing Office
|General Note:|| Title from title screen (viewed September 15, 2014).
|Bibliography, etc. Note:|| Includes bibliographical references (pages 21-22).
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|Subject:||Gold ores > Geology > Colorado > Needle Mountains.
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