Mine detail: Hilltop Mine

Previously called 'Victoria Mine'

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Location

Lat / long:

46.11306, -88.30448

Resource(M)

Primary:	Iron
Ore:	Hematite, Goethite
Gangue:	Chert, Pyrite, Siderite, Stilpnomelane, Chlorite, Mica

Production

Operation type:	Underground
Deposit type:	Secondary Enrichment
Production size:	Small
Development status:	Past Producer
First production started:	1899
Last production ended:	1919

Geology

Host type:	Iron Formation
Alteration processes:	Chert and siderite to hematite and goethite in oxidation zones.

References

MRDS	W028638
DEP	10079379
Reference	{Deposit:: JAMES, H.L., DUTTON, C.E., PETTIJOHN, F.J., WIER, K.L., 1968, GEOLOGY AND ORE DEPOSITS OF THE IRON RIVER, CRYSTAL FALLS DISTRICT, IRON COUNTY, MICHIGAN. WASHINGTON, U.S. GOVT. PRINTING OFFICE. 1968. PP. 45-56, 88-110.}{Deposit:: LAKE SUPERIOR IRON ORE ASSOCIATION, 1938, LAKE SUPERIOR IRON ORES (1ST CD.): CLEVELAND, OHIO. P. 155.}{Deposit:: CROWELL, BENEDICT, AND MURRAY, C.B., INC., 1919, 1917, THE IRON ORES OF LAKE SUPERIOR (2ND,3RD EDS.): CLEVELAND, OHIO. PP. 201,256 RESPECTIVLY.}{Deposit:: JOHNSON, A.M. AND GROTH, E.H., 1998, INVENTORY OF UNDERGROUND MINES, IRON COUNTY, P. 189-190, MICHIGAN DEPARTMENT OF NATURAL RESOURCES.}
Reporter	Yeager, Keith (Cannon, W.), Sutphin, D.M., Mason Jr., G.T., Anderson, Arlene (M. Gere)