Mine detail: Holyoke Silver Mine

Previously called ''

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Location

Lat / long:

46.58778, -87.6378

Resource(M)

Primary:	Silver
Secondary:	Gold
Tertiary:	Cadmium
Ore:	Silver, Gold
Gangue:	Galena, Sphalerite, Pyrite

Production

Operation type:	Underground
Production size:	Unknown
Development status:	Prospect
First production started:	1864
Last production ended:	1868

Geology

Structure:

Regional trends are from east to west

References

MRDS	LW00184
DEP	10310184
Reference	JOHNSON, A.M. AND GROTH, E.H., 1998, INVENTORY OF UNDERGROUND MINES, MARQUETTE COUNTY, P. 197-198, SITE ID 520083, MICHIGAN DEPARTMENT OF NATURAL RESOURCES.
Reporter	Anderson, Arlene (M. Gere)