July 24, 2012 Corporate Presentation

Building Canada’s Largest Gold MineProduction Early 2013

Corporate Presentation July 24, 2012

© 2011 Detour Gold All Rights Reserved. 2

This presentation contains certain forward-looking information as defined in applicable securities laws (referred to herein as “forward-looking statements”). Specifically, this presentation contains forward-looking statements regarding the reserve and resource estimates, ore grade, expected mine life, anticipated gold production, gold recovery, cash operating costs and other costs, capital costs, sensitivity to metal prices and other sensitivities, financial analysis of the project, commencement of operations, potential expansion opportunities, plans for organic growth and expected drilling activities. Forward-looking statements involve known and unknown risks, uncertainties and other factors which are beyond Detour Gold’s ability to predict or control and may cause Detour Gold’s actual results, performance or achievements to be materially different from any of its future results, performance or achievements expressed or implied by forward-looking statements. These risks, uncertainties and other factors include, but are not limited to, gold price volatility, changes in debt and equity markets, the uncertainties involved in interpreting geological data, increases in costs, environmental compliance and changes in environmental legislation and regulation, interest rate and exchange rate fluctuations, general economic conditions and other risks involved in the gold exploration and development industry, as well as those risk factors discussed in the section entitled “Description of Business - Risk Factors” in Detour Gold’s 2011 AIF and in the continuous disclosure documents filed by Detour Gold on and available on SEDAR at www.sedar.com. Such forward-looking statements are also based on a number of assumptions which may prove to be incorrect, including, but not limited to, assumptions about the following: the supply and demand for gold, and the level and volatility of the price of gold; the availability of financing for exploration and development activities; the estimated timeline for the development of the Detour Lake gold project; the expected mine life; anticipated gold production; gold recovery; the development schedule; cash operating costs and other costs; the financial analysis for the project; capital costs; sensitivity to metal prices and other sensitivities; the accuracy of reserve and resource estimates and the assumptions on which the reserve and resource estimates are based; the receipt of necessary permits; market competition; ongoing relations with employees and impacted communities; and general business and economic conditions. Accordingly, readers should not place undue reliance on forward-looking statements. The forward-looking statements contained herein are made as of the date hereof, or such other date or dates specified in such statements. Detour Gold undertakes no obligation to update publicly or otherwise revise any forward-looking statements contained herein whether as a result of new information or future events or otherwise, except as may be required by law. If the Company does update one or more forward-looking statements, no inference should be drawn that it will make additional updates with respect to those or other forward-looking statements.

Forward Looking Information


Information Concerning Estimates of Mineral Reserves and Resources

The mineral reserve and resource estimates reported in this presentation were prepared in accordance with Canadian National Instrument 43-101Standards of Disclosure for Mineral Projects (“NI 43-101”), as required by Canadian securities regulatory authorities. For United States reporting purposes, the United States Securities and Exchange Commission (“SEC”) applies different standards in order to classify mineralization as a reserve. In particular, while the terms “measured,” “indicated” and “inferred” mineral resources are required pursuant to NI 43-101, the SEC does not recognize such terms. Canadian standards differ significantly from the requirements of the SEC. Investors are cautioned not to assume that any part or all of the mineral deposits in these categories constitute or will ever be converted into reserves. In addition, “inferred” mineral resources have a great amount of uncertainty as to their existence and great uncertainty as to their economic and legal feasibility. It cannot be assumed that all or any part of an inferred mineral resource will ever be upgraded to a higher category. Under Canadian securities laws, issuers must not make any disclosure of results of an economic analysis that includes inferred mineral resources, except in rare cases.

On January 31, 2011, Detour Gold announced an updated mineral resource and reserve estimate. The following QPs participated in this update: Michel Dagbert, Eng., Senior Geostatistician and André Laferrière, P. Geo., Senior Geologist of SGS Canada Inc. (mineral resources); and André Allaire, Eng., Director Mining and Metals and Patrice Live, Eng., Mining Manager of BBA Inc (mineral reserve). The NI 43-101 compliant Technical Report for this update was filed on SEDAR on March 15, 2011.

On January 25, 2012, Detour Gold announced a mineral resource and reserve update. The following QPs participated in this update: Michel Dagbert, Eng., Senior Geostatistician of SGS Canada Inc (mineral resources) and Patrice Live, Eng., Mining Manager of BBA Inc (mineral reserves).

NI 43-101 Disclosure


Focus on a world-class asset – Detour Lake Canada’s largest pure gold play with 15.6 M oz in reserves

(@ US$ 850/oz gold price) Construction progressing on schedule (75% as of June 30)

One of the best cash flow/share opportunities Gold production starting in Q1 2013 Excellent organic growth potential (5 year plan) Potential expansion of mill throughput

Invest in Detour Gold


Issued and Outstanding:

112.6 M

Options & FN Share Commitments:

8.7 M =Fully Diluted:

134.3 M

Market cap: C$2.4 Billion Cash position: C$576 Million Major shareholders:

Convertible Notes:13.0 M

Paulson & Co. 15%

Fidelity Mgmt 8%

Detour Gold Mgmt <2%

Institutions total >90%

Share Capital

Detour LakeDetour Lake

+ +

Note: Share data and cash position as of June 30, 2012.


Strong Share Performance

Osisko (239%)

Yamana

Randgold

Eldorado

Buenaventura

NewcrestIMG

KinrossAndina

HeclaGabriel

Anglo Gold AshantiAEM

GoldfieldsCG

NEM

AGI

Aurizon GABX

GSC

DGC11/09DGC11/09

DGC07/10DGC07/10

Jan. 2007 to Present % Change in Shares Outstanding100

150

0 50 200

Share Issuance vs. Performance

Source: BMO, June 2012

IPOIPO

DGC07/09DGC07/09

DGC04/08DGC04/08

DGC08/11DGC08/11

Ja

n.

20

07

to

Pre

se

nt

Tota

l R

etu

rn

400%

300%

200%

100%

0%

-100%

500%

600%

700%

800%

900%

1000%

500% total return since IPO

DGC01/12DGC01/12

DGC equity financings

AuRicoEco Oro

Great Basin (209%)


DETOUR LAKE: RECORD TIMING FROM “DISCOVERY” TO PROJECTED PRODUCTION

6 years

Acquisition/Discovery

2007

Pre-feasibility Study2009

Feasibility Study & Permitting

2010

Development2011-2012

Production 2013

Successful Focused Approach


Mineral reserves/resources update for 2011 year-end Top up of $277 million to complete the project and working capital Second 45 km segment of transmission line complete 230 kV transmission line connection in Q3 Updated mine plan & operational forecast in Q3 Ore stockpile of 3 Mt available in Q4 for processing Process plant commissioning in Q4 Manpower ramp-up to 400 (now 277 employees at site and Cochrane) Delivery of 12 haul trucks and 2 cable shovels

Detour Gold 2012 Objectives


2005-05

2006-09

Date AccumulativeDGC Drilling Resources/Reserves (M oz) Inferred M&I 2P

Growing Reserve/Resource Base

RESOURCE GROWTH EXCEEDING 750% SINCE IPO

2007-12 50,000m

2008-06 123,000m

2012-01 523,000m $850/oz 15.6

2011-01 430,000m $850/oz 14.9

2010-06 334,000m $850/oz 11.4

2009-09 249,000m 8.8

Estimated by Pelangio

DGC due diligence

10M 20M 30M


As at Dec. 31, 2011

@ US$850/ozTonnes

(millions)Grade(g/t)

Contained Gold(‘000 oz)

Reserves (1)

Proven 101.6 1.29 4,222

Probable 368.4 0.96 11,351

P&P 470.0 1.03 15,573

Resources (2)

Measured 124.5 1.36 5,424

Indicated 554.3 1.00 17,836

M&I 678.8 1.07 23,261

Inferred 208.5 0.86 5,785

1. After a 95% mining recovery rate; Mining dilution factor of 15.5%.2. Inclusive of mineral reserves.

DISCOVERY COST < $10/oz OF RESERVES

Detour Lake Reserves & Resources


Detour Lake Profile (@ US$850/oz)

>1.0 g/t Au

0.5 - 1.0 g/t Au

<0.5 g/t Au

20,600E

16,500E

700 m

Open pit@ 0.5 g/t cut-off

Detour LakeJanuary 2012

update

Production start Q1 2013

OP reserves (M oz) 15.6

Mill throughput (tpd) 55,000

Strip ratio (waste:ore) 3.6

Gold recoveries 91%

Average grade (g/t) 1.03

Estimated mine life (yrs) 22

Avg. production (oz/yr)(1)(2) 657,000

Initial Capex (C$ B)(3) 1.45

1. After full commissioning in Yr 1.2. Based on March 2011 TR.3. Initial capex revised in November 2011.


2012E Cash Cost Profile (US$/oz)*

JuniorProducers

SeniorProducers

IntermediateProducers

$ 796

$ 706 $ 706

$ 800

$ 700

$ 600

$ 500

*Source: BMO Equity ResearchSeniors Producers include: Agnico-Eagle, AngloGold Ashanti, Barrick, Gold Fields, Goldcorp, Kinross, Newcrest, Newmont, Polyus and Yamana.Intermediate Producers include: African Barrick, Alacer, AuRico, Centamin Egypt, Centerra, Eldorado, Harmony, IAMGold, New Gold, Osisko, Petropavlovsk, Randgold and SEMAFO.Junior Producers include: Alamos Gold, Aurizon, Avion, Avocet, CGA Mining, Cluff Gold, Dundee Precious Metals, Golden Star, Great Basin Gold, Kingsgate, Lake Shore, OceanaGold, Perseus, Primero, Resolute, San Gold and Teranga.

Total Cash Costs

Since 2010 (release of Feasibility Study), inflationary pressure seen in operating costs

25%

14%

13%13%

7%

4%

24%Maintenance Consumables

Royalty(2%

NSR)G&A

DieselPower

Labour

Approx. % of total cash cost/oz in FS1

1. Total estimated cash cost of US$543/oz based on March 2011 TR using cost parameters from feasibility study, including US$850/oz gold price and US$80/barrel oil.

© 2011 Detour Gold All Rights Reserved. 13© 2011 Detour Gold All Rights Reserved. 13

Mine Site ConstructionProgressing on Schedule


2010 2011 2012 2013

Construction Schedule Q1 Q2 Q3 Q4 Q1 Q2 Q3 Q4 Q1 Q2 Q3 Q4 Q1

Award of Engineering Contract

Award of PCM Contract

Detailed Engineering

Construction camp (1,200 people)

Power line (Phase 1&2) – Electrification

Equipment purchase/delivery & assembly

Pre-stripping

Process plant – Commissioning start-up

Tailings dam construction (first cell)

Provincial Permits/Aboriginal IBAs

Federal Permits

Start production and ramp-up

Detour Lake: We are on ScheduleDetour Lake: We are on Schedule

1 2

GOLD PRODUCTION PROJECTED IN 1Q 2013


Capital Expenditures (C$ M)

Description

SpentJune 30,

2012

CommittedJune 30,

2012

Project Control Estimate

(as of 11/2011)

Mining Fleet and Facilities 142 181 203

Crushing and Processing (P&E) 421 610 565

Tailings and Water Mgmt 16 45 65

Infrastructure and Power line 139 150 156

Other Indirect 167 206 310

EPCM 84 100 101

Contingency (10%) - 1 50

Total (pre-production) 969 1,294 1,450

PROJECT CONSTRUCTION 75% COMPLETE

Detour Lake: We are on Budget


2012 Pre-Stripping

Feasibility Study

PCE(11/2011)

Status (06/30/2012)

Overburden/Till 16 Mt 21 Mt 7.0 Mt

Waste - 10 Mt 2.4 Mt

Ore 3 Mt -

Estimated Cost C$30 M C$78 M -

PROJECT CHANGE OF SCOPE

= A BENEFIT

Ore available for processing in 2012

Ore ready to be processed by the fourth quarter of 2012 Pre-production capital costs include $78 M for pre-strip activities 10 Mt mined to date with daily rates >100,000 t Plan to have up to 3 Mt of ore ready for process

2012 Operational Readiness Plan


Mining is Ramping Up


Mining is Ramping Up


8 CAT 795F trucks operational + 6 assembled (includes 2 supplied by CAT);

2 CAT 6060FS shovels in operationShovel CAT 7495 (48 m3) to be ready

late summer

Initial Mining Fleet at Site

Loading Units3 X Hydraulic CAT6060 (25 m3)2 X Electric cable shovels (48 m3)

Haulers

23 X CAT 795F trucks (320 t);30-35 at peak of operation


135 km

Powerline45 kmPowerline

Detour Lake Development Progress

Gravel (34 km)135 km

Powerline

Paved road (151 km)

45 kmPowerline

Detour Lake

Second 45 km segment of powerline complete

Pre-stripping program ongoing Installation of mill equipment

underway (first grinding line mechanical installation is 90% complete)

Installation of equipment in gold room underway

Commissioning with water started for leach tanks

Truck wash facilities complete Permanent camp construction

completed

© 2011 Detour Gold All Rights Reserved. 2121Note: Open pit reserves using US$850/oz goldNote: Open pit reserves using US$850/oz gold

Detour Lake Mining FacilitiesDetour Lake Mining Facilities


12-06-08

Overview Detour Lake Facilities

Truck Wash

Truck Shop & Warehouse

Mine Offices

Processing Plant


Overview Detour Lake Facilities

12-07-13

Primary Crusher

Stockpile Reclaim

Secondary Crushers

Geodesic Dome


Gyro is 9 m high

Primary Crusher (up to 100,000 tpd capacity)

35 m

Surface

12-07-13


Stockpile Reclaim

12-07-13

Geodesic Dome for Stockpile Reclaim

Secondary and Pebble Crushers

12-06-08


SAG Mills

12-06-08

Ball Mills

Processing Plant Building


Processing Plant Building

Hydrocyclones

CIP Tanks

12-06-08

Pumps


Conventional gravity and CIP plant 55,000 tpd (=92% availability of 60,000

tpd capacity) 2 parallel lines (each with 1 secondary

cone crusher + 1 SAG and 1 ball mill)

A

A

Simple Process Plant

Estimated gravity recovery: 30-40% Estimated overall gold recovery: 91.0% Leach time 29 hours Leach feed size 80% passing 95 μm


Detour Lake Employees & Contractors

Construction Phase >1,550 workers (currently) Ramping up DGC team (277)

Operation Phase (Starting 2013) 400-500 employees Rotation 1 week in /out New modern camp facilities with

400 en-suite rooms completed


Focus: Hiring Local First

28%

24%

43%

3%2%

CochraneCochrane AreaNorthern OntarioRest of Ontario

Professional are: MGMT, Eng., Geo., Supt. Front Line are: Operators, Admin, Support Continuing focus on hiring local/regional 25% of employees are Aboriginals

24%

76%

ProfessionalFront Line

Yr-end 2012 Employment Objective:

301/400 as of June 30, 2012*

* Includes Corporate office.


Planning for Organic GrowthUnder-explored Greenstone Belt


Large prospective land position of approx. 540 km2

Land position increased with acquisition of Trade Winds properties Two main gold structures with total strike length of >80 km Continue focus on Detour Lake deposit extension (northern structure) Test targets on structure south of Detour Lake

Future Objectives Grow reserve base to +20 M oz (@ US$850/oz) Increase mill throughput to above 75,000 tpd for gold production

output of +800,000 oz/yr Find high-grade ore near-surface within trucking distance to

supplement mill

5 yr plan for successful organic growth

Planning for Organic Growth


Priority #1 on Block A Area between Block A open pit resource (M-Zone) and the

underground QK Zone discovered by Placer in mid-90’s Drilling program of 50,000 m in 1H 2012 Start pre-feasibility study for small open pit (Block A resource) Advance exploration of QK underground zone

Priority #2 on Lower Detour Deformation Zone (+40 km) 5,060 m of diamond drilling completed: N-S drill fence on high-grade drill

hole intercepts (53 g/t Au / 3 m & 22.6 g/t Au / 1 m) 115 km of IP geophysical survey completed Geological and structural mapping; data compilation

2012 Plan for Successful Organic Growth


*Not updated with TWD Dec. 30th PR. On Dec. 1, 2011, Detour Gold announced the acquisition of TWD.


Deposit open to the west and at depth +50,000 m of drilling for 2012 (Block A open pit above QK Zone)

2012 target


Block A near-surface resource

Detour Lake 2011 year-end reserves = 15.6 M oz

Priority # 1 - Block A Target

DH included in 2011 year-endreservesDH not included in 2011 year-endreserves

2012 proposed DH2012 extension DH

Historical DH


Priority # 1 - Block A Target

July 14, 2012

2012 proposed DH2012 extension DH2012 completed DHHistorical DHCancelled or not accessible

2011 year-end reserves = 15.6 M oz

Block A2012 Drilling Program

•HQ geotechnical drill core (Golder and Ass.) is being stored on pallets at the McAlpine Camp until we can free up manpower to log it and prepare it for shipment.


Existing DDHGold occurrence (OGS)DDH intersection >1g/2mDDH intersection >1g/10m

*Note: Excludes drilling around Detour Lake and M zone (Block A).

+80 km of favourable geology

Insert- see next slide

MMI Survey Coverage

MMI Au Anomaly


Sunday Lake Option

15.6 M oz in Reserves



Completed drilling


?

?



2013

2012

2014

Best scenario is throughput increase from 55,000 to 75,000 tpd @ US$1,200/oz

Start pre-feasibility on Block A

Complete feasibility study and assess technical feasibility and resultant project economics

At >US$1,000/oz and after successful commercial production is achieved, proceed with plant expansion

Complete expansion in 2 years

Evaluating Expansion Opportunities


Focus on a world-class asset – Detour Lake Canada’s largest pure gold play with 15.6 M oz in reserves

(@ US$ 850/oz gold price) Construction progressing on schedule (75% as of June 30)

One of the best cash flow/share opportunities Gold production starting in Q1 2013 Excellent organic growth potential (5 year plan) Potential expansion of mill throughput

Invest in Detour Gold


Additional Information


Detour Lake – Surface Plan

2011 Year-end reserves = 15.6 M oz

DH included in the 2011 year-endreserves

DH not included in the 2011 year-endreserves

Pre 2007 DH


QK Zone

Looking 20,070 N

Detour Lake – Long Section

DH included in the 2011 year-endreserves

DH not included in the 2011 year-endreserves

Pre 2007 DH


1,600

1,400

1,200

1,000

800

600

400

200

0

Oun

ces

(000

’s)

0.1 0.2 0.3 0.4 0.5 0.6 0.7 0.8 0.9 1.0 1.1 1.2 1.3 1.4 1.5 1.6 1.7 1.8 1.9 2.0 2.1 2.2 2.3 2.4 2.5 2.6 2.7 2.8 2.9 3.0

Cut-off BINs

OK (oz Au)ID3 (oz Au)

Approx. 3 M oz. between 0.3-0.5 g/t Au

Block Model - Gold Distribution


Directors

Peter CrossgroveLouis DionneRobert E. Doyle

Ingrid HibbardMichael KenyonAlex G. Morrison

Gerald PannetonJonathan RubensteinGraham Wozniak

Management Gerald Panneton, Founder, President &

CEO, Director Michael Kenyon, Chairman Paul Martin, CFO Pierre Beaudoin, Sr. VP Capital Projects Pat Donovan, VP Corporate Development Julie Galloway, VP General Counsel &

Corporate Secretary James Mavor, VP Finance Rachel Pineault, VP HR & Northern

Affairs James Robertson, VP Environment &

Sustainability

Derek Teevan, VP Aboriginal & Government Affairs

Eric Josipovic, Controller Drew Anwyll, Director of Operations Andrew Croal, Dir. Technical Services Laurie Gaborit, Dir. Investor Relations Jean-François Métail, Director Reserves

and Resources Greg Miazga, Dir. Construction &

Engineering Bill Snelling, Director Corporate Systems

and Controls Christian Brousseau, Project Manager Patrik Gillerstedt, Mine Manager

Management & Directors



Gerald Panneton, President & CEO Email: [email protected] Ph: 416 304 0800

Laurie Gaborit, Director Investor RelationsEmail: [email protected] Ph: 416 304 0800

www.detourgold.com

Contact Information