Ore deposits of the Helena mining region, Montana

Adolph Knopf

doi:10.3133/b527

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Ore deposits of the Helena mining region, Montana

Bulletin 527

By: Adolph Knopf

https://doi.org/10.3133/b527

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Document: Report (pdf)
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Abstract

Suggested Citation

Knopf, A., 1913, Ore deposits of the Helena mining region, Montana: U.S. Geological Survey Bulletin 527, 143 p. :ill., plates, fold. maps, diagrs. ;24 cm., https://doi.org/10.3133/b527.

Additional publication details
Publication type	Report
Publication Subtype	USGS Numbered Series
Title	Ore deposits of the Helena mining region, Montana
Series title	Bulletin
Series number	527
DOI	10.3133/b527
Year Published	1913
Language	ENGLISH
Publisher	Govt. Print. Off.,
Description	143 p. :ill., plates, fold. maps, diagrs. ;24 cm.