Mine detail: Colby Mine

Previously called 'Peterson Mine'

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Location

Lat / long:

46.47333, -90.05622

Resource(M)

Primary:	Iron
Discovery year:	1884

Production

Operation type:	Underground
Production size:	Unknown
Development status:	Past Producer
Production years:	1884-1894; 1896-1921; 1923
First production started:	1884
Last production ended:	1923

Geology

References

MRDS	W001411
DEP	10068382
Reference	{Deposit:: LAKE SUPERIOR IRON ORES, 1952, P. 54.}{Deposit:: JOHNSON, A.M., AND GROTH, E.H., 1998, INVENTORY OF UNDERGROUND MINES, GOGEBIC COUNTY, P. 163-168, MICHIGAN DEPARTMENT OF NATURAL RESOURCES.}
Reporter	Cannon, Suzanne S., Sutphin, D.M., Mason Jr., G.T., Anderson, Arlene (M. Gere)