August 2016 - Exploration for Metallic Mineral Resources: Copper, Nickel, and Platinum Group Metals, Duluth Complex Map

The August 2016 - Exploration for Metallic Mineral Resources in Minnesota DULUTH COMPLEX Duluth Complex

Hosting World T. 62, R. 11 BWCAW White B2 D3 Gull Spruce Road Deposit Cu,Ni,PGM Class Copper, Nickel, Iron Gabbro Lake Twin Metals Minnesota NI 43-101 Lake and Platinum Group T. 62, R. 12 Lake Nickel Lake A B2 B2 T. 62, R. 7 T. 62, R. 10 T. 62, R. 9 Quadga Isabella S. Filson Creek Deposit Cu,Ni,PGM B2 E3 T. 62, R. 8 Metal Resources 1 D3 Lake Lake T. 62, R. 13 Encampment Minerals E3 E T3 D3 Omaday Bald Eagle Johnson B2 T3 Exploring since 1948 Purvis Lake-Ober One Pine E Lake Lake T. 62, R. 14 Lake Maturi Deposit Cu,Ni,PGM T3 E D3 Foundation SNA Lake B2 T3 T T3 T E D3 Twin Metals Minnesota NI 43-101 B2 T3 E E Bogberry T To w e r T E E3 Lake Bear B2 T D3 BWCAW T B2 B2 D3 Bog Head B2 T3 E3 Lake Lake T Bear Island T3 T B2 E3 E3 D3

T. 61, R. 14 State Boundary Waters Canoe Area Wilderness (BWCAW) Bear F Park Lake T3B2 T Head F F D3 E3 E D3 There are many deposits of copper, nickel, and PlatinumLake Group Birch E L E Harris D3 T. 61, R. 12 B2 Lake E Metal (PGM) resources in the bedrock along approximately 40 miles L Lake T. 61, R. 7 L T. 61, R. 11 D3 T. 61, R. 9 L T. 61, R. 8 of the edge of the Duluth Complex near Babbitt, Minnesota. This F E3 E3 D3 E3 L3 D3 E3 T. 61, R. 13 Birch Lake Deposit Cu,Ni,PGM F L3 map shows the locations of the deposits, state metallic mineral F E3 E Twin Metals Minnesota NI 43-101 L3 E F E3 E3 leases, and federal hardrock leases and prospecting permits. T3 D3 T. 61, R. 10 D3 E3 F E3 Birch F E E3 E3 B2 F F L3 E3 E3 F E3 D3 E3 Lake L3 F F Dunka Area Deposits Cu,Ni,PGM T3 E3 Twin Metals Minnesota T T3 T3

F T F Babbitt T3 Slate F T F Lake T. 60, R. 12 F T3 T Serpentine Deposit Cu,Ni,PGM F F F F Encampment Minerals F T3 T. 60, R. 7 E T. 60, R. 8 F F T. 60, R. 13 F F T3 Cliffs Natural Resources T. 60, R. 10 T. 60, R. 9 Northshore Taconite Mining Plant F TA Mesaba Deposit Cu,Ni,PGM F T. 60, R. 11 Teck American Inc. 1 T. 60, R. 14 T. 60, R. 15 TA

TA TA North McDougal D TA E E E Lake Dumbbell TA E D E E Lake NorthMet Deposit Cu,Ni,PGM E E South Isabella PolyMet Mining Corp. NI 43-101 Lake County E E E E E McDougal F E Lake PolyMet Mining Proposed Plant E PolyMet Mining T. 59, R. 11 E E 135 and Tailings Sites Proposed Mine Site E E Mesabi Section 17 Deposit Ti Sand Lake E E Nugget Peatland E E Idled Scientific T. 59, R. 9 T. 59, R. 8 T. 59, R. 15 Plant Wetlegs Deposit Cu,Ni,PGM T. 59, R. 7 Sabin and Natural Area T. 59, R. 10 T. 59, R. 12 Lake Longear Deposit Ti Sand

T. 59, R. 14 Lake St. Louis County Louis St. Wynne County Louis St. Longnose Deposit Ti Lake E E NI 43-101 P3 T. 59, R. 13

E

E Wyman Creek Deposit Cu,Ni,PGM,Ti Colby Encampment Minerals Greenwood E Lake Lake Aurora E Big E Sand Lake T. 58, R. 15 Lake E Exploration Leases and Permits Peatland E T. 58, R. 7 Hoyt Seven Beaver Scientific E Active state nonferrous metallic mineral leases T. 58, R. 12 and Natural Area See company label codes below for map labels. State leases have no number Lakes E E Lake appended to the label. E E T. 58, R. 13 T. 58, R. 9 T. 58, R. 11 T. 58, R. 10 T. 58, R. 8 Active federal hardrock mineral leases T. 58, R. 14 Beaver Bay Joint Venture (’B2’) is the only company with federal mineral leases. Whitewater E Lake Active federal hardrock prospecting permits E Sect. 22 Deposit Cu,Ni,PGM,Ti The map labels add a ‘3’ after a companies label code where they Encampment Minerals E E E 1 have a federal prospecting permit to help differentiate them from other leases. E E E E Twin Metals Minnesota and its E E E E Company labeled codes E Pine Ownership Interests E E A - Agate Lake Resources B2 - Beaver Bay Joint Venture Butterball Lake D - DMC (USA) LLC F - Franconia Minerals E - Encampment Minerals L - Lehmann Exploration E E Skibo Deposit Cu,Ni,PGM,Ti Lake P3 - Prime Meridian Resources T - Twin Metals Minnesota E Encampment Minerals St. Louis River TA - Teck American Inc. E E E E Northshore Mining Railroad The number ‘3’ is appended to the label code for Federal Prospecting Permits. P3 E E E E E E E E E E 7 R. T. 57, Terminated state nonferrous Canadian National Railway metallic mineral leases (1967-August 2016) E T. 57, R. 14 E E T. 57, R. 13 T. 57, R. 12 T. 57, R. 10 T. 57, R. 9 T. 57, R. 8 Private mineral leases are not shown. P3 E T. 57, R. 11 P3 E E E T. 57, R. 15 P3 E E Mineral Deposits P3 P3 E E E Deposits of Copper, Nickel, PGM and/or P3 Water Hen Deposit Cu,Ni,PGM,Ti E Caddotte Titanium E Prime Meridian Resources Deposit Name Minerals Lake Company *NI 43-101 P3 P3 E *National Instrument NI 43-101 is a national instrument for the Standards of Disclosure for Mineral Projects within Canada. Mineral deposits on this map Lax with a completed NI 43-101 are: SpruceLoon Road, Maturi, Birch Lake, NorthMet, Bassett Lake Longnose, Titac South, and Tamarack LakeNorth. Lake

PolyMet’s NorthMet Project Area T. 56, R. 15 T. 56, R. 12 T. 56, R. 14 Tettegouche Iron Ore Mining Features T. 56, R. 10 T. 56, R. 9 State T. 56, R. 13 T. 56, R. 11 T. 56, R. 8 7 R. T. 56, Active taconite Idled taconite pellet plant Park mining plant or pig iron nugget plant

In closure taconite mining plant

Biwabik Iron Formation

Taconite or Natural Iron Ore Pit Wolf Tailings Basin Lake

LongGeneral Bedrock Geology Terranes Lake Whiteface Duluth Complex Reservoir Silver Bay North Shore Volcanic Group, Beaver Bay Complex, or miscellaneous midcontinent rift intrusions Canadian NationalT. 55, Railway R. 11 T. 55, R. 10 Penokean Virginia Formation, Thomson T. 55, R. 13 Formation, or Pokegama Quartzite Cloquet River Archean Granite or Greenstones of the T. 55, R. 12 Superior Province T. 55, R. 14 Miles 0 1 2 3 4 Titac North Deposit Fe, Ti E Map Scale is 1:110,000 Comstock T. 55,Lake R. 15 E E Titac South Deposit Fe, Ti King Lake NI 43-101 E E E E

E E

E E Lake County E E E E E E E E T. 54, R. 12 T. 54, R. 11 T. 54, R. 10

T. 54, R. 15 T. 54, R. 13 Canadian National Railway National Canadian E Railway National Canadian E E

T. 54, R. 14

St. Louis County County Louis Louis St. St. Map Location E Lieuna E Ontario, Canada Disclaimer Lake E The State of Minnesota makes no representations or warran- E E ties express or implied, with respect to the use of the infor- Duluth mation contained herein regardless of its format or the means Complex E of its transmission. There is no guarantee or representation to Map the user as to the accuracy, currency, suitability, completeness, Duluth usefulness, or reliability of this information for any purpose. The user accepts the information “as is." The State of Minne- T. 53, R. 10 T. 53, R. 14 sota assumes no responsibility for loss or damage incurred as a result of any user’s reliance on this information. All maps, About this map and data reports, data, and other informationT. 53, contained R. 13 herein are T. 53, R. 12 T. 53, R. 11 Minneapolis T. 53, R. 15 protected by copyright. Permission is granted to copy and use Map was updated by Kevin Hanson in August of 2016 at the Minnesota Department of Natural Resources, Division of Lands and Minerals. and St. Paul the materials herein for any lawful noncommercial purpose. Any user of this information agrees not to transmit or provide Iron Mining Plant Status (8/16), Iron Mining Features (1/15), Known Metallic Mineral Deposits (02/14), and Active State access to all or any part of this information to another party Tw o Lake Superior Metallic Mineral Leases (08/16) from the DNR’s Division of Lands and Minerals. Federal Hardrock Leasing and Prospect- MINNESOTA unless the user shall include with the information a copy of ing Permits from USDA Forest Service (1/15 - No changes to this data since January of 2015). Bedrock Geology this disclaimer. Harbors features were generalized from the MGS S-21, 2011 version (1:500,000). Roads and Railroads from MnDOT; County E Boundaries, State Parks, SNAs, BWCAW, Public Land Survey features, and Cities from the DNR; Lakes shown are greater than 200 acres and were taken from the DNR.