Indiana Mine

Ontonagon County, Michigan, United States

Copper

Land & claims · BLM · live

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BLM MLRS ↗Claims at this point ↗Surface mgmt ↗

Surface manager + active mining claims at this point, live from BLM. The "open to location" notes are a general 1872-Mining-Law guide, not BLM output — decision-support only; verify with BLM MLRS and on the ground before staking or entry.

Commodities

PrimaryCopper

Commodity typeMetallic

Deposit

Deposit typeSecondary Enrichment

Model96: Native Cu

Deposit sizeSmall

Ore controlConcentrated in shoots (stratigraphic in amygdaloid of fissure related).

Materials

Ore mineralsCopper

GangueQuartz, Calcite, Epidote, Pumpellyite-(Mg), Chlorite, Feldspar, Cuprite, Tenorite, Fluorite, Silver

Geology

Host rockBasalt · Portage Lake Volcanics

AlterationRemoval of hematite, copper replacement, quartz-pumpellyite bleaching, cuprite to tenorite.

Economic & production

Development statusPast Producer

First production1862

Last production1916

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References

COPPER RANGE CO., UNPUBLISHED, 1968, BEDROCK GEOLOGY MAP OF THE WINNER (SW 1/4) QUADRANGLE, ONTONAGON COUNTY, MICHIGAN. GEOLOGY MAPPED AND COMPILED BY COPPER RANGE EXPLORATION CO., INC., AND BY H. HUBBARD (U.S.G.S.)BUTLER, B.S., AND BURBANK, W.S., 1929, THE COPPER DEPOSITS OF MICHIGAN: U.S. GEOLOGICAL SURVEY PROF. PAPER 144, 238P.WILBAND, J.T., 1978, THE COPPER RESOURCES OF NORTHERN MICHIGAN; PREPARED FOR THE U.S. BUREAU OF MINES, CONTRACT NO. J0366067, 66P.JOHNSON, A.M., AND GROTH, E.H., 1998, INVENTORY OF UNDERGROUND MINES, ONTONAGON COUNTY, P. 94-97, MICHIGAN DEPARTMENT OF NATURAL RESOURCES.

Identification

Deposit ID10080393

MRDS IDW031521

RegionNA

Data scoreB

Coordinates46.79944, -88.99674