Michigan · Marquette County
Plant

Ropes

Marquette County, Michigan, United States
GoldSilver
⌖ Show on mapUSGS source ↗
Commodities
PrimaryGold
SecondarySilver
Commodity typeM
Deposit
WorkingsUnderground
Materials
Other materialsGold, Pyrite, Silver
Economic & production
Development statusPlant
First production1882
Discovery year1880
Identification
Deposit ID10219091
MRDS IDW700455
RegionNA
Data scoreB
Coordinates46.5361, -87.71672
References
CLARK, L.D., W.F. CANNON, AND J.S. KLASNER. BEDROCKGEOLOGIC MAP OF THE NEGAUNEE SW QUADRANGLE, MARQUETTECOUNTY, MICHIGAN. U.S. GEOLOGICAL SURVEY, GEOLOGICQUADRANGLE MAP GQ-1226, 1975, 1 P.HEINEN, H.J., D.G. PETERSON, AND R.E. LINDSTROM. PROCESSINGGOLD ORES USING HEAP LEACH-CARBON ADSORPTION METHODS.BUMINES IC 8770, 1978, 21 PP.POTTER, G.M. GOLD AND SILVER LOW COST PROCESSING METHODS--STATE OF THE ART. SKILLINGS' MINING REVIEW, V. 70,NO. 10, MAR. 7, 1981, PP. 1-11.SCHNEIDER, C.F. SURFACE GEOLOGY AND AGRICULTURAL CONDITIONSOF MICHIGAN. MICHIGAN GEOL. AND BIOLOGICAL SURVEY,PUB. 25, GEOL. SERIES 21, 1917, PP. 47-95.SKILLINGS, D.N. CALLAHAN MINING CORP.'S PROGRAM AT ROPESMINE IN MICHIGAN. SKILLINGS' MINING REVIEW, V. 69,NO. 47, NOV. 22, 1980, PP. 1-13.SKILLINGS' MINING REVIEW. CALLAHAN EXPLORATION AT ROPESGOLD PROPERTY. V. 69, NO. 16, APR. 19, 1980, P. 21.SKILLINGS' MINING REVIEW. CALLAHAN PROGRESS IN SECOND PHASEOF ROPES MINE EVALUATION. V. 70, NO. 10, MAR. 7, 1981,P. 6.SKILLINGS' MINING REVIEW. CALLAHAN NEARING DECISION ONMAJOR PROJECT FOR ROPES MINE. V. 70, NO. 39, SEP. 26,1981, P. 16.THE MINING RECORD, "ROPES GOLD MINE PRODUCTION ADDS TOCALLAHAN'S EARNINGS", V 98, #30, JULY 29, 1987, P3.BRODERICK, T.M. GEOLOGY OF THE ROPES GOLD MINE, MARQUETTECOUNTY, MICHIGAN. ECON. GEOL., V. 40, 1945,PP. 115-128.CALLAHAN MINING CO., 1989, ANNUAL REPORT FOR 1988:PHOENIX, ARIZONA.