RockWoof
Check access before you go. Most sites listed here are old mines, quarries or prospects, and many are on private land or active mining claims. Get the landowner's permission, check the rules of the agency that manages any public land, and never enter mine workings. Locations are approximate.

Found alongside

Counts are sites whose USGS record mentions the mineral or commodity. Hardness from Mindat.

By county

St. Louis County (28) · Cook County (9) · Koochiching County (5) · Lake County (3) · Itasca County (2) · Crow Wing County (2) · Beltrami County (1) · Aitkin County (1)

Sites

SiteCommodityMinerals recordedStatusApprox. location
Cobalt ProspectArsenic, CobaltArsenopyriteOccurrence48.072, -90.673
Blankenburg-Whiteside ProspectCobaltArsenopyrite, ChalcopyriteOccurrence48.074, -90.742
Minnamax Cu-Ni ProspectCopper, Nickel, Palladium, PlatinumBornite, Bravoite, Chalcocite, Chalcopyrite, Copper, Covellite, Cubanite, Digenite, Galena, Magnetite, Pentlandite, Pyrite, Pyrrhotite, Silver, Sphalerite, TenoriteProspect47.632, -91.883
Spruce Road depositCopper, Nickel, Platinum, PalladiumBornite, Bravoite, Chalcocite, Copper, Cuprite, Digenite, Galena, Magnetite, Pentlandite, Pyrite, Sphalerite, Tenorite, TroiliteProspect47.830, -91.681
Maturi Nokomis DepositCopper, Nickel, Palladium, PlatinumBornite, Chalcocite, Chalcopyrite, Covellite, Cubanite, Cuprite, Digenite, Pentlandite, Pyrite, Pyrrhotite, Sphalerite, TenoriteProspect47.801, -91.756
South Filson Creek depositNickel, CopperBornite, Chalcocite, Chalcopyrite, Covellite, Cubanite, Digenite, Galena, Millerite, Niccolite, Pentlandite, Pyrrhotite, Sperrylite, SphaleriteProspect47.822, -91.674
Gunflint Corridor East—Bornite, ChalcopyriteOccurrence48.083, -90.740
Gunflint Corridor West—Bornite, ChalcopyriteOccurrence48.086, -90.847
Dunka RoadNickel, Platinum, Palladium, CopperBornite, Chalcopyrite, Cubanite, Gold, Pentlandite, Pyrrhotite, SphaleriteProspect47.666, -91.900
Dunka Pit Cu-Ni depositCopper, NickelBornite, Chalcopyrite, Cubanite, Millerite, Pentlandite, Pyrrhotite, SphaleriteOccurrence47.721, -91.824
Wyman Creek depositNickel, CopperBornite, Chalcopyrite, Cubanite, Pentlandite, PyrrhotiteProspect47.553, -92.107
Birch LakeCopper, Nickel, Platinum, PalladiumBornite, Chalcopyrite, Pentlandite, Pyrite, PyrrhotiteProspect47.750, -91.818
Susie Island Copper VeinsCopper, SilverChalcopyrite, Bornite, Pyrite, Covellite, ChalcocitePast Producer47.977, -89.575
Little America MineGoldChalcopyrite, Gold, PyritePast Producer48.602, -93.168
Vermilion River MinesGoldChalcopyrite, Gold, Pyrite, PyrrhotiteUnknown48.241, -92.603
Loon Lake—Chalcopyrite, Pyrite, ArsenopyriteOccurrence48.067, -90.717
Wet Legs DepositPGE, Nickel, CopperCubanite, Chalcopyrite, Bornite, Pentlandite, PyrrhotiteUnknown47.582, -92.038
Bushyhead Island ProspectGoldGoldUnknown48.606, -93.118
Lyle MineGoldGoldOccurrence48.620, -93.117
Cranberry Islet ProspectGoldGoldUnknown48.611, -93.043
Kelliher ProspectGoldGoldUnknown47.937, -94.542
Gold Island ProspectGoldGoldUnknown47.889, -92.440
Steamboat Islet ProspectGoldGoldUnknown48.610, -93.046
Grassy Island ProspectGoldGoldUnknown48.618, -93.215
Old Spaulding MineGoldGoldOccurrence48.049, -90.214
North American MineGoldGoldUnknown47.797, -92.278
Indus ProspectGoldGold, Pyrite, PyrrhotiteUnknown48.621, -93.851
Mcfarland Lake ProspectSilver, GoldGold, SilverOccurrence48.064, -90.103
Glen ReserveSulfur-PyriteHematite, MagnetitePast Producer46.462, -93.494
Section 17 DepositIron, Titanium, MetalIlmenite, Magnetite, Bornite, Pyrrhotite, Pentlandite, Chalcopyrite, CubaniteUnknown47.587, -92.010
LongearIron, Titanium, MetalIlmenite, Magnetite, Chalcopyrite, Bornite, Cubanite, Pyrrhotite, Pentlandite, PyriteUnknown47.565, -92.033
Water HenTitanium, Metal, IronIlmenite, Magnetite, Chalcopyrite, Cubanite, Bornite, Maucherite, Mackinawite, Pentlandite, Pyrite, Pyrrhotite, SphaleriteUnknown47.399, -92.113
Section 22 DepositTitanium, Metal, IronIlmenite, Magnetite, Chalcopyrite, Cubanite, Pentlandite, PyrrhotiteUnknown47.499, -92.100
Boulder Lake--NorthTitanium, Metal, IronIlmenite, Magnetite, Chalcopyrite, Cubanite, Pentlandite, PyrrhotiteUnknown47.097, -92.152
LongnoseTitanium, Metal, IronIlmenite, Magnetite, Pentlandite, Pyrrhotite, Cubanite, Chalcopyrite, BorniteUnknown47.556, -92.008
Boulder Lake--SouthIron, Titanium, MetalIlmenite, Magnetite, Pyrrhotite, Chalcopyrite, Cubanite, PentlanditeUnknown47.040, -92.182
Central Boulder LakeTitanium, Metal, IronIlmenite, Magnetite, Pyrrhotite, Pentlandite, Chalcopyrite, Cubanite, SphaleriteUnknown47.068, -92.177
Skibo DepositTitanium, Metal, IronIlmenite, Magnetite, Pyrrhotite, Pentlandite, Cubanite, ChalcopyriteUnknown47.471, -92.105
Section 34 DepositTitanium, Metal, IronIlmenite, Magnetite, Sphalerite, Pyrite, Pyrrhotite, Pentlandite, Cubanite, Chalcopyrite, BorniteUnknown47.206, -92.098
Serpentine DepositNickel, CopperPentlandite, Cubanite, Chalcopyrite, PyrrhotiteUnknown47.675, -91.872
Green Prospect PitCopperPentlandite, Pyrrhotite, ChalcopyriteOccurrence47.978, -89.763
Birch Point ProspectGold—Unknown47.870, -92.386
Lind-Greenway MineIron—Past Producer47.280, -93.500
Algoma-Zeno MineIron, Manganese—Past Producer46.518, -94.011
Plummer GroupIron—Past Producer47.321, -93.396
Thunderbird NorthIron—Producer47.486, -92.559
Minntac MineIron—Producer47.567, -92.638
Cuyuna North RangeManganese—Past Producer46.480, -94.017
Northshore MineIron—Producer47.663, -91.942
Thunderbird MineIron—Producer47.444, -92.554
LTV MineIron—Producer47.600, -92.142

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How we built this page: we counted named sites in the USGS Mineral Resources Data System (MRDS) for this area, left out sand, gravel, crushed stone, clay pits and unnamed sites, grouped them by Census county, and linked every site to its USGS record. We did not visit these sites, and MRDS does not tell you who owns the land or whether collecting is allowed.

Source: USGS Mineral Resources Data System (MRDS). USGS ceased systematic updates to MRDS around 2011, so status and details may be out of date. Each site links to its USGS record.

Updated