0 1 2 3Miles

0 1 2Miles

T.145

T.146

T.147

T.148

T.149

T.150

T.151

T.152

T.153

T.154

T.155

T.156

T.157

T.158

T.159

T.160

T.161

T.162

T.163R.36 R.35

R.34 R.33R.32

R.31R.30 R.29

R.28R.27 R.26 R.25

R.27 R.26 R.25R.24

R.23 R.22 R.21 R.20R.19 R.18

R.17

R.16R.15 R.14

R.13

R.12 R.11

R.10R.9 R.8

R.7

R.6R.5 R.4

T.69

T.68

T.67

T.66

T.65

T.64

T.63

T.62

T.61

T.60

T.59

T.58

T.57 R.6

R.5R.4D u l u t h C o m p l e x Cu+Ni+PGM+TiO2Exploration

T.62

R.25 R.24 R.23 R.22 R.21 R.20 R.19 R.17

Q u e t i c o S u b p r o v i n c e

Q u e t i c o S u b p r o v i n c e

W a w a S u b p r o v i n c e

W a w a S u b p r o v i n c e

W a b i g o o n S u b p r o v i n c e

W a b i g o o n S u b p r o v i n c e

Rainy River

Kenora/Red Lake

Mine CentreHammond Reef

R.25R.26R.27R.28R.29R.30R.31R.32R.33R.34R.35R.36 R.27 R.25R.26 R.24 R.23 R.22 R.21 R.20 R.19 R.18 R.17 R.16 R.15 R.14 R.13 R.12 R.11 R.10 R.9 R.8 R.7R.37

OO nn tt aa rr ii oo ,, CC aa nn aa dd aa

MM ii nn nn ee ss oo tt aa ,, UU SS AA

Minnesota, U.S.A.

Ontario, Canada

Wawa

WabigoonWinnipeg R.

English RiverQueticoWawa

Abitibi

UchiBerens

Sachigo

0 10 20 30 40Miles

Printed Map Scale: 1:750,000

Printed Map Scale: 1:85,000Base Map: 1:500:000After Jirsa et al. (2010)

Printed Map Scale: 1:12,000,000Base Maps: 1:500,000 (MGS)/1:1,000,000 (OGS)After Jirsa and Southwick (2003), OGS (2010) Active Gold Exploration in Minnesota's Archean Greenstone BeltsHigh Gold PotentialLand Available Known Gold Mineralization

PlutonicMetasedimentaryVolcanoplutonic

Subprovince TypesProducing MinePast ProducerExploration Areain Minnesota

Gold

Visible gold grainin a Virginia Hornquartz-feldsparporphyry drillcore that has 77.9gpt/2.3 ft.(photo courtesyof VermillionGold LLC)

Drill core from the Bigfork West Exploration Area. Gold-bearing iron formation with 5.3 gpt/5 ft.(photo courtesy of Vermillion Gold LLC)

Spot gold concentrations(ppm) in drill core from agreenstone belt nearInternational Falls, Minnesota.New semi-quantitative XRFanalyses by MnDNR.This is an example of the drillcore accessible to the public aspart of the Drill Core Library’scollection of more than 2.3million feet of archivedmaterials. This specific sectionof core was submitted by anexploration company that wasfocused on a different intervalof rock.

K n o w n G o l d M i n e r a l i z a t i o n

Exploration borehole

FaultThrust faultOutcrop (extent not to scale)

LakeSuperior

Massive granodiorite to graniteIntermediate to felsic intrusive

Mafic intrusive

Iron formationMetaconglomerate, sandstone

Metasedimentary rocks& derived gneisses

Mafic metavolcanic & metasedimentary

Bedrock Geology Base Maps: 1:500,000 (MGS)/1:1,000,000 (OGS)After Jirsa et al. (2010), OGS (1993, 2010)

DDH ND-3See photo above ofgold minera l iza t ion

2564ppb Auover 10 f tin DDH TC35-5

2480ppb Auover 4 f tin DDH TC35-33560ppb Au

over 0 .7 f tin DDH RR-1

2780ppb Auover 4 .5 f tin DDH SS -2A

2765ppb Auover 4 .5 f tin DDH SS -1

4020ppb Auover 4 f tin DDH TC35-1

R. 22R. 23

R. 24

T. 70

T. 71

T.69Printed Map Scale: 1:100,000Base Map: 1:500:000After Jirsa et al. (2010)

0 1 2 3Miles

High Gold Potential

8016ppb Au over 2 .5 f tin DDH SS -4

Producing or past producing gold mineAdvanced explorationstage Rainy Rivergold project

References:Jirsa M and Southwick D (2003) Mineral Potential and Geology of Minnesota. Minnesota Geological Survey, University of Minnesota.Retrieved 2010-12-08.Jirsa M, Boerboom T, Chandler V, Mossler J, and Runkel A (2010) Preliminary Bedrock Geologic Map of Minnesota. Minnesota GeologicalSurvey Map Open-File Report OFR10_02. Scale 1:500,000.Ontario Geological Survey (1993) Bedrock geology, seamless coverage of the Province of Ontario; Ontario Geological Survey, Data Set 6.Scale 1:1,000,000.Ontario Geological Survey (2010) Mineral Deposit Inventory—2010.

Disclaimer and Copyright Protection: Maps, Reports, Data, and Other InformationThe State of Minnesota makes no representations or warranties express or implied, withrespect to the use of the information contained herein regardless of its format or the meansof its transmission. There is no guarantee or representation to the user as to the accuracy,currency, suitability, completeness, usefulness, or reliability of this information for anypurpose. The user accepts the information “as is." The State of Minnesota assumes noresponsibility for loss or damage incurred as a result of any user’s reliance on thisinformation. All maps, reports, data, and other information contained herein areprotected by copyright. Permission is granted to copy and use the materials herein for anylawful noncommercial purpose. Any user of this information agrees not to transmit orprovide access to all or any part of this information to another party unless the user shallinclude with the information a copy of this disclaimer.

0 2 4 6 8 10Miles

T.60

T.59

T.61

Printed Map Scale: 1:182,500Base Map: 1:500:000After Jirsa et al. (2010)

R.18

Printed Map Scale: 1:85,000Base Map: 1:500:000After Jirsa et al. (2010)

T.58

T.59 R.17 R.16 R.15

T.57

R.13R.14R.15

T.61

T.62

T.63

Penokean Pokegama Quartzite

State Land Availablefor Exploration

Public land survey townships (border varies due to scales)Public land survey sections (border varies due to scales)

Upper Red Lake

Lake of the Woods

LakeWinnibigoshishCassL.

RainyLake

Lower Red Lake

The Archean Superior Province greenstone belts that host many of Canada’s richest gold camps continuealong strike across the U.S. border and into the northern portion of Minnesota. The potential for goldproduction in Minnesota’s portions of the Wawa and Wabigoon Subprovinces is excellent, and theexploration models used for nearby gold deposits in Northwestern Ontario (e.g. Rainy River, HammondReef, Moss Lake/Shebandowan), should be considered. Overburden thickness and composition inMinnesota range from thin layers of glacial drift in the northeast, to saprolite buried under more than 100meters of glacial deposits in the northcentral part of the State. The possibility of supergene enrichmentwithin saprolitic zones adds to the list of viable ore deposit models, and expands the area of viablegreenstone belt gold exploration.

Exploration companies are exploring gold prospects on state-owned mineralleases in Minnesota’s Archean Superior Province granite-greenstone terranes.INDEX MAPINDEX MAP

Active State metallic mineral lease (As of August 13, 2012)

Exploration areas (see six inset maps for detail)Areas ever offered as State metallic mineral lease (section level)

Bi g fo rk We st

Bi g fo rk Eas t

Li nd en G rove

In t er n at i on alFa ll s

Vi r gi n ia Hor n

Ver mi l ion

Bi g f o r k We s t

Bi g f o r k E a st

Li nd e n G r ove

Vi r g in i a H o r n

Ve r m i li o n

Vermilion L.

Kabetogama L.

M e s a b i I r o n R a n g e

International Falls

Canadian National Railway

Railroads (line size and color varies due to scales)

Minnesota Department of Natural Resources, Division of Lands and Minerals,

September 2012. Director, Jess Richards

Sym b o l s em co m p as s t h i s i nd ex ma p and th e i n s e t m ap s s e en b e low