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431000m 32 33 34 35 36 37 38 39 40 41 42 43 44 45 46 47 48 49 50 51 52 53 54 55 56 57 58 59 60 61 62 63 64 65 66 67 68 69 70 71 72 73 74 75 76 77 78 79 80 81 82 83 484000m

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L40500> L40500>

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<L40750 <L40750

L40800> L40800>

L40850> L40850>

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L40950> L40950>

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L41050> L41050>

<L41101 <L41101

L41150> L41150>

<L41200

L41250>

<L41300

L41350>

<L41400

<L41450

L41500>

<L41550

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<L41650

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<L41750

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L41850>

<L41900

L41950>

<L42000

L42050>

<L42100

L42150>

<L42200

L42250>

<L42300

L42350>

<L42400

L42456>

<L42500

L42550>

<L42600

L42650>

<L42700

L42750>

<L42800

L42850>

<L42900

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<T400030

<T400 040

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<T400060

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<T400080

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<T400110

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<T400130

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<T400150

T400160>

<T400170

T400180>

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<T300191<T300191

Adams Bay

Ajax Lake

AllanLake

AnsteyLake

AremisLake

BabyShingwak

Lake

Asheigamo Lake

AthosLake

BagLake

BartleyLake

BassLake

BeggsLake

BivouacLake

Blacky Bay

Bluffpoint

BogBay

BrittonLake

Brooks Bay(Rowan Lake)

Brooks Cree

k

Brooks Lake

BrownTroutLake

CalvertLake

Cameron Lake

Canoe Bay

Cedartree

ChasePoint

Clar

kson

Clarkson Lake

Cleftrock Creek

CliffPoint

Cross Lake

Cros

srou

te C

reek

CrossrouteLake

CrowLake

D'Artagnan

D'ArtagnanLake

Dash Lake

DashLakePoint

DerbyLake

DERBY LAKEWILDERNESS

AREA

DerryLake

ElbowLake

Emm Bay

Emm Island

Esox Lake

Fish Island

Floyd Lake

Forrest C

reek ForrestLake

Frypan Lake

Furlonge Lake

GibraltarNarrows

GODSON TP

GoldPointIsland

HarrisLake

Hector Lake

HelenaLake

Heronry Lake

Hill

Lake

HolsteinLake

Fog

Lake

HookLake

HornbergLake

HospitalLake

James Bay

Jessie Lake

Kakabikitchiwan Lake

Kakagi Lake

Katimia

Katimiagamak Lake

Knutson Lake

Lawrence Lake

Little Trout Lake

Lou Lake

Lower Brooks Lake

LowerFurlonge

Lake

LowerTwinLake

Mirror Bay

Missus Lake

Mister Lake

Mongus Lake

NealLake

NestorFalls

NewmanLake

NolanLake

Northwest Arm(Pipestone Lake)

OarBay

OsipasinniLake

Otter Bay

Otterskin

Lake

Peninsula Bay

PhinneyLake

PineIsland

Pipestone C

reek

PipestonePivotPoint

PontoonLake

PrinceLake

Rowan Lake

SABASKONGBAY

INDIANRESERVE

34D

SandhillLake

Schistose

SeahorseLake

ShallowWaterLake

Shingwak Lake

SickleLake

SittingMooseLake

South Otterskin Lake

StanburyLake

Stephen

Straw Creek

Straw Lake

Suca

n Cree

k

Sucan Lake

Sullivan Bay

SullivanLake

Thompson Bay

Upper Lawrence Lake

UpperTwinLake

WampumLake

WeisnerLake

WicksLake

WigwamLake

WindfallNarrows

Yoke

CLAXTON TPMCLARTY TP

Nestor Falls(Runway)

LakeLake

KakagiLake

CleftrockLake

Creek

Lake

Lake

CreekCr

eek

KENORA DISTRICT

RAINY RIVER DISTRICT

Lake

Lake

Fog

Lake

GODSON TP

49°05'00"

10'

10'

15'

15'

55'

55'

50'

50'

45'

45'

40'

40'

35'

35'

30'

30'

25'

25'

20'

20'

15'

15'

93°57'31"

49°19'28"

93°57'47" 93°12'14"

49°19'42"

49°05'09"

93°12'20"

-420-400-380-360-350-340-330-320-310-300-290-280-270-260-250-240-220-210-190-160-130-100

-500

110300

RESIDUAL MAGNETIC FIELD GRID

© Queen's Printer for Ontario, 2010.

2 km01 km

NTS References: 52 F/3,4,5,6.

Location map 1 cm equals 20 km

AIRCRAFT

SURVEY PARAMETERS

DESCRIPTIVE NOTESIntroduction

Scale 1:50 000

AIRBORNE MAGNETIC SURVEY

Colour-filled contours of theresidual magnetic field

MAP 60 145

Ontario Geological Survey

This map is published with the permission of the Director,Ontario Geological Survey.

This survey was flown using Firefly's Cessna 206 magnetometer-equipped aircraft. The aircraft was also equipped with GPS

Residual Magnetic Field Map

The contours of residual magnetic intensity were generated fromdigitally recorded data. The magnetic data were corrected fordiurnal variations, levelled to the control lines and interpolatedonto a 10 m regular grid, using the bi-cubic spline algorithm.

was applied to the total magnetic field data at survey altitudeusing the 2005 model year extrapolated to 2007.09 (February 1,2007). A regional correction was applied to level the magneticfield to the Ontario Master Aeromagnetic Grid.

MAGNETIC CONTOURS

10 nT contour

50 nT contour

200 nT contour

Magnetic

1000 nT contour

depression

Type: Cessna U206GRegistration: C-GWAS

MAGNETOMETERType: Geometrics G-822 caesium-vapourSensitivity: 0.005 nTNoise level: 0.02 nTSample interval: 10 readings per second

NAVIGATION AND DATA ACQUISITION SYSTEMSGPS receiver: Novatel ProPak LB PlusGPS sample interval: 2 readings per secondRadar altimeter: King KRA 10A

BASE STATIONMagnetometer: GEM GSM-19Magnetometer sample interval: 1 reading per second

SURVEY SPECIFICATIONSSurvey date: January 22 to April 22, 2007Nominal aircraft terrain clearance: 50 mTraverse line spacing:Control line spacing:Traverse line direction:

Control line direction:

COORDINATE SYSTEMProjection: Universal Transverse MercatorDatum: NAD83Central meridian: 93°00' W (UTM zone 15N)Central scale factor: 0.9996False easting: 500 000 mFalse northing: 0 m

CREDITSData acquisition, data compilation by Firefly Aviation Ltd.,Calgary, Alberta for Whetstone Minerals Inc., Calgary, Alberta.

Ontario Ministry of Northern Development, Mines and Forestry,Sudbury, Ontario.

To enable the rapid dissemination of information, this map hasnot received a technical edit. Every possible effort has beenmade to ensure the accuracy of the information presented;however, the Ontario Ministry of Northern Development,Mines and Forestry does not assume liability for any errorsthat may occur. Users can verify critical information from thecorresponding digital profile and gridded data distributed by theOntario Geological Survey.

Issued 2010.

Information from this publication may be quoted if credit is given.It is recommended that reference be made in the following form:

Ontario Geological Survey 2010. Airborne magnetic survey,colour-filled contours of the residual magnetic field, BrooksLake area―Purchased data; Ontario Geological Survey,

SOURCES OF INFORMATIONBase map information derived from the Ontario Land InformationWarehouse, Land Information Ontario, Ontario Ministry of

Magnetic declination for the centre of the map area wasapproximately 0°33'W in 2010.

1

Users of OGS products are encouraged to contact thoseAboriginal communities whose traditional territories may belocated in the mineral exploration area to discuss their project.

nanoteslas (nT)

Natural Resources, scale 1:50 000.

Magnetic declination on February 1, 2007 for the centre of thesurvey area was 0°07'E. Magnetic inclination on February 1,2007 for the centre of the survey area was 75°07'N. Magneticfield strength was 57 937 nT (calculated using IGRF).

Data reprocessing and map production by Scott Hogg &Associates, Toronto, Ontario.

50 m500 m90° azimuth (blocks 1, 3 & 4)

0° azimuth (blocks 1, 3 & 4)

LEGEND

Contract management, base maps and map surrounds by the

navigation and digital data acquisition systems.

An International Geomagnetic Reference Field (IGRF) correction

Radar sample interval: 10 readings per secondNavigation: Ag-Nav P141

FLIGHT LINE INFORMATION

Line directionLine number> 12701

Data acquisition: RMS Instruments DGR33A

GPS receiver: Novatel OEM2GPS sample interval: 1 reading per second

180° azimuth (block 2)

90° azimuth (block 2)

Purchased Data

Map 60 145, scale 1:50 000.

The geophysical data on this map were purchased from theprivate sector. The original data acquisition was neithersupervised by the Ontario Geological Survey (OGS) nor carriedout to OGS technical specifications. However, the purchaseddata do meet a pre-defined valuation criteria set out by the OGS.

carried out on the digital data.

nanoteslas(nT)

Evans, B. 2007. Pipestone and Redvers Projects, Kenora Area,Ont., High Resolution Aeromagnetic Survey (HRAM) LogisticalReport for Western Warrior Resources Inc.; unpublished report.

Some quality assurance and quality control checks have been

60 145

60 14649°

94° 93°

49°

93°94°

Block 1

Block 4

Block 2

Block 3

PHILLIPS

FLEMING

WOODYATT

NELLES

PATTULLO TAIT

SHENSTON

ROSEBERRY

DILKEMORLEY

AYLSWORTH

MATHER

DOBIE

LASH

KINGFORD

CARPENTER

MATHIEU

DEWART

SUTHERLAND

TOVELL

PRATT

BLUE

SIFTON

MORSON

POTTSRICHARDSON

ROWE SENNMENARY

CLAXTONCROOME

McLARTY

GODSON

RODDICK

GRIESINGER

MISCAMPBELL

DEVLIN

BURRISS

DANCE WATTEN

HALKIRK

FARRINGTON

McGEORGE

WILLINGDON

TWEEDSMUIR

CROZIER

Seine River

LakeKakagi

Upper

Lake

Rainy

LakeLawrence

LakeEsox

Loonhaunt

Rowan

PipestoneLake

LakeAtikwa

Lake

Lake

Lower Manitou

LakeManitou

LakeOF THE

WOODS

LAKE

Pinewood

North Branch

Morson

Sioux Narrows

Minahico

Barwick

Dearlock

Stratton Emo

InternationalFalls

Fort FrancesLaVallee

GoldRock

Crow Lake

U.S.A.