1

BUILDING CANADA’S LARGEST GOLD MINE

Production Early 2013

Corporate Presentation

December 17, 2012

2

Forward Looking Information 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, and plans for organic growth. 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.

3

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 September 4, 2012, Detour Gold announced an updated mine production plan for the Detour Lake project. The NI 43-101

compliant Technical Report for this update was filed on SEDAR on October 18, 2012. The following QPs participated in this

update: BBA Inc., under the direction of André Allaire, Eng., Vice-President, Markets – Mining and Metals and Patrice Live,

Eng., Mining Manager; SGS Canada Inc., under the direction of Michel Dagbert, Eng., Senior Geostatistician and Maxime

Dupéré, P.Geo., Senior Geologist; and AMEC Environment & Infrastructure, a Division of AMEC Americas Limited, David G.

Ritchie M.Eng., P.Eng, Senior Associate Geotechnical Engineer.

NI-43 101 Disclosure

Information Containing Estimates of Mineral Reserves and Resources

4

Focus on a world-class asset – Detour Lake

Canada’s largest pure gold play with 15.6 M oz in reserves

Construction progressing on schedule (97% as of November 30)

One of the best cash flow/share opportunities

Gold production starting in Q1 2013

Average annual gold production of 657,000 oz

Excellent organic growth potential (5 year plan)

Potential expansion of mill throughput

Invest in Detour Gold

Our Vision

5

Market cap: C$2.7 billion

Cash position: C$257 million

Major shareholders: Paulson & Co. 15%

Fidelity Mgmt 8%

Detour Gold Mgmt <2%

Institutions total >90%

Note: Cash position at October 31, 2012 and share data at November 30, 2012.

Share Capital

FULLY DILUTED

134.6 M

OPTIONS & FN SHARE

COMMITMENTS

8.4 M

CONVERTIBLE

NOTES

13.0 M

ISSUED AND

OUTSTANDING

113.2 M

6

ABX NEM

Gabriel

Anglo Gold Ashanti AEM

GSC Eco Oro Andina

Osisko

(239%) Yamana

Randgold

Eldorado Buenaventura

Newcrest IMG

Kinross Hecla

Goldfields CG

AGI

Aurizon G

Jan. 2007 to Present % Change in Shares Outstanding

100 150 0 50 200

Share Issuance vs. Performance

Source: BMO, Nov. 2012

Ja

n. 2

00

7 t

o P

res

en

t To

tal

Retu

rn

400%

300%

200%

100%

0%

-100%

500%

600%

700%

800%

900%

1000%

AuRico Great Basin

(209%)

DGC

01/12

DGC

08/11

DGC

07/10

DGC

11/09

DGC

04/08

DGC

07/09

IPO

570% total

return since IPO

Share Capital

Note: Date of DGC equity financings

DGC

11/12

7

PRODUCTION 2013

Record Timing from “Discovery” to Projected Production

Detour Lake in 6 years

ACQUISITION /DISCOVERY

PRE-FEASIBILITY STUDY

FEASIBILITY STUDY & PERMITTING

DEVELOPMENT PRODUCTION

2007 2009 2010 2011-12 2013

Successful Focused Approach

8

• 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

• Phase 1 drilling (49,000m) for Block A pre-feasibility study

Updated mine plan & operational forecast in Q3

Meeting employment ramp up schedule (416 full-time employees at

site and Cochrane)

Commissioning line in Q4

Ore stockpile of 2.3 Mt available in Q4 for processing

2012 year-end = 20 haul trucks + 4 shovels

Detour Gold 2012 Objectives

9

Resource Growth Exceeding 750% Since IPO

Date Accumulative DGC Drilling

Resources/Reserves (M oz) Inferred

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

2005-05 Estimated by Pelangio

2006-09 DGC due diligence

10M 20M 30M

M&I 2P

Growing Reserve/Resource Base

10

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 Lake September

2012 Mine Plan

Production Start Q1 2013

OP Reserves (M oz) 15.6

Mill throughput (tpd) 55,000

Strip Ratio (waste:ore) 3.7

Gold recoveries 91%

Average grade (g/t) 1.03

Estimated mine life (yrs) 21.5

Avg. Production (oz/yr) 657,000

Cash operating costs (C$/oz) $710

Total cash costs (C$/oz) $749

Initial Capex (C$ B) 1.45

Detour Lake Profile

Note: Gold price assumptions: US$1,600/oz for 2013, US$1,500/oz for 2014, and US$1,400/oz for 2015.

11

800

700

600

500

400

300

200

100

0

Gold Production (‘000 oz)

1.6

1.4

1.2

1.0

0.8

0.6

0.4

0.2

0

Grade (g/t Au)

Updated LOM Gold Production

Avg. 657,000 oz/yr

12

MAINTENANCE

LABOUR POWER

DIESEL

G&A

ROYALTY+

OTHER

(2% NSR)

CONSUMABLES

29%

22%

18% 12%

8%

5%

6%

Breakdown of 2013-14 TCC

Operating Costs (LOM) C$/t milled C$/t mined C$/oz

Mining costs 11.65 2.49 388

Processing cost 7.83 -- 260

G&A 1.86 -- 62

Cash operating costs 21.34 -- 710

Royalty (2%) and other 1.26 -- 42

Refining 0.12 -- 4

Silver credit (0.20) -- (7)

Total cash costs (TCC) 22.52 -- 749

Updated Operating Costs

2013 TCC estimated between C$800/oz and C$900/oz (on commercial production of 200,000 oz to 250,000 oz sold)

10% change in diesel or power = $9/oz change in TCC

10% change in Cdn$ FX rate = $63/oz in TCC

13

12-10-22

Capital Expenditures (C$ M) Spent

10/31/2012

PCE

11/2011

Mining Fleet and Facilities 198 203

Crushing and Processing (P&E) 583 565

Tailings and Water Mgmt 39 65

Infrastructure and Power line 150 156

Other Indirect 200 310

EPCM 91 101

Contingency - 50

Total (pre-production) 1,261 1,450

Capex & Sustaining Capital

Note: As of October 31, 2012, the Company has approximately $257 million in cash and short-term investments sufficient

to fully finance the remaining project expenditures.

Expected to finish within 3% i.e. between $1.46 and $1.5 billion

Estimated LOM sustaining capital of C$1.2 billion: 2013 = C$180 M

2014 = C$140 M

14

Gold - US$1,200/oz (1)

F/X - $Cdn/$US = 1.00

Base Case (1)

US$ Billions Undiscounted (0%) 5.0%

Pre-tax cash flow 4.3 1.7

Net cash flow after tax 3.0 1.1

Pre-tax IRR 14.4%

49

Power Cdn $0.065/kwh

Diesel US$100/barrel (WTI)

Financial Analysis

Base Case Assumptions

1. Gold price US$1,600/oz for 2013, US$1,500/oz for 2014, and US$1,400/oz for 2015.

@ US$1,600/oz

US$ Billions Undiscounted (0%) 5.0%

Pre-tax cash flow 9.4 4.4

Net cash flow after tax 6.6 3.0

Pre-tax IRR 24.6%

15

DETOUR LAKE DEVELOPMENT Progressing on Schedule

16

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-production 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 Schedule

1 2

Gold Production Projected in Q1 2013

17

2013 Mine Plan

Based on January 2013 Startup

Total gold production estimate of 407,000 oz (1)

Pre-commercial production = 144,000 oz

Commercial production = 250,000 oz (excludes 12,715 oz locked in

circuit load)

Management guidance:

350,000 to 400,000 oz

Total cash costs between

C$800/oz and C$900/oz

1. 2013 production of 394,000 ounces of saleable gold plus 12,715 ounces locked in circuit load.

18

CAT 7495 Face Shovel

now operating in OP

Ore ready to be processed by Q4 2012

The stockpiles available for mill production start-up will be 2.3Mt @ 0.8 g/t

Mining operations have exceeded a single day production rate of +202kt total material moved and have exceeded +103kt on a single shift

Average mining rates of +110,000 tpd

Crews working 24 hrs per day operating 8 haul trucks (CAT 795) and 2 hydraulic shovels (CAT6060) and 1 cable shovel (CAT7495)

2012 Pre-Stripping Status (11/30/12)

Overburden/Till 15.1Mt

Waste 6.8Mt

Low Grade (0.3-0.5 g/t) 1.7Mt

Ore 1.8Mt

Total 25.4Mt

Mining is Ramping Up

19

NORTH WASTE

DUMP PLANT SITE

CAMPBELL

PIT

APPROX. PIT SHELL

AT END OF 2014

CURRENT

PIT SHAPE

MINERALIZED

ZONE

Mining is Ramping Up

Satellite image dated July 2012

20

7495 Face Shovel on 256 mL Bench

12-10-22

21

ROM – Ore Stockpile

12-12-02

22

DETOUR LAKE CONSTRUCTION

Progressing on Schedule

23

Overview Detour Lake Facilities

PROCESSING

PLANT STOCKPILE

RECLAIM TRUCK SHOP &

WAREHOUSE

TRUCK WASH

MINE OFFICES

12-10-22

24

Overview Detour Lake Facilities

SECONDARY

CRUSHERS

GEODESIC

DOME

STOCKPILE

RECLAIM

PRIMARY

CRUSHER

12-10-22

25

35 m to surface

Gyro is

9 m high

12-12-02

Primary Crusher (up to 100,000 tpd capacity)

26

Stockpile Reclaim

12-12-02

27

420 Reclaim Line 1

12-12-02

28

Secondary & Pebble Crushers

12-12-02

29

Processing Plant Building

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 & 1 ball mill)

12-12-02

30

630 Thickener

12-12-02

31

635 Leach Tank Line 1

12-12-02

32

Processing Plant Building

CIP TANKS

PUMPS

12-10-22

Estimated gravity recovery: 30-40%

Estimated overall gold recovery: 91.0%

Leach time 29 hours; leach feed size 80% passing 95 μm

33

640 CIP Line 1

Started to add carbon

12-12-02

34

Gyratory

crusher:

60” x 113”

90,000 tpd

SAG mills:

2 X 36’ x 20’, 15MW

55,000 tpd To

leaching

circuit

To

gravity

circuit

Secondary crushers:

2 X XL-1100

67,000 tpd

Pebble crushers:

2 X XL-1100

73,000 tpd

Circ. load

28 % Circ. load

250 % From

gravity

circuit

Stockpile

12 h live capacity

Ball mills:

2 X 26’ x 40’6’’, 15MW

55,000 tpd

Leach circuit:

55,000 tpd + 15% contingency in piping capacity

Simple Process Plant @ 92% Availability

35

670 Tailings

12-12-02

36

Tailings Management Area

12-10-22

37

Construction Phase

+1,400 workers (at Nov. 30, 2012)

Ramping up DGC team (416)

Operation Phase (Starting 2013)

400-500 employees

Rotation 1 week in/out

New modern camp facilities with 400 en-suite rooms completed

Detour Lake Employees & Contractors

38

FRONT LINE

82%

PROFESSIONAL

18%

Professional are: MGMT, Eng., Geo., Supt.

Front Line are: Operators, Admin, Support

Continuing focus on hiring local/regional

25% of employees are Aboriginal

NORTHERN

ONTARIO

43%

COCHRANE

26%

COCHRANE

AREA

25%

REST OF

ONTARIO

4%

2%

WORKFORCE ORIGIN DIVISION OF LABOUR

OTHER

* Excludes Corporate office.

Focus: Hiring Local First

On track with ramp up schedule: 416 employees at November 30, 2012*

39

PLANNING FOR ORGANIC GROWTH

Under-Explored Greenstone Belt

40

• Two main gold structures with total strike length of >80km

• Continue focus on Detour Lake deposit extension (northern

structure i.e. Block A)

• Test targets on structure south of Detour Lake

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

Planning for Organic Growth

5 Year Plan for Successful Organic Growth

Large prospective land position of approx. 540 km2

Future objectives

41

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

Block A

Pre-feasibility

Priority #1 – Block A Target

Detour Lake deposit open to the west and at depth

Block A Pre-feasibility underway: Phase 1 drilling (49,000 m)

completed

42

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-end reserves

DH not included in 2011 year-end reserves

2012 proposed DH

2012 extension DH

Historical DH

Priority #1 – Block A Target

43

Existing DDH Gold occurrence (OGS)

DDH intersection >1g/2m DDH intersection >1g/10m

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

+80 km of favourable geology

MMI Survey Coverage

MMI Au Anomaly

Priority #2 – South Structure

15.6 M oz in Reserves

Sunday Lake Option

44

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

Start pre-feasibility on block A

2013

2012

2014

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 within 2 years

Evaluating Expansion Opportunities

45

Focus on a world-class asset – Detour Lake

Canada’s largest pure gold play with 15.6 M oz in reserves

Construction progressing on schedule (97% as of November 30)

One of the best cash flow/share opportunities

Gold production starting in Q1 2013

Average annual gold production of 657,000 oz

Excellent organic growth potential (5 year plan)

Potential expansion of mill throughput

Invest in Detour Gold

Our Vision

46

ADDITIONAL INFORMATION

47

Detour Lake Profile

Detour Lake January 2011

Update (2)

September 2012

Mine Plan(3)

Gold price (US$/oz) (1) 850 1,200

Foreign exchange rate (US$/Cdn$) 1.10 1.00

Assumptions Fuel price (US$/barrel) 80 100

Income/mining tax rate (%) 25/10 25/10

Net Smelter Royalty (%) 2 2

Ore milled (Mt) 449.6 470.0

Waste mined (Mt) (4) 1,654 1,734

Mine Strip ratio (waste:ore) 3.9 3.7

Parameters Average gold grade (g/t) 1.03 1.03

Total contained gold (M oz) 14.9 15.6

Estimated gold recovery (%) 91.0 91.0

Total recovered gold (M oz) 13.5 14.1

Mine life (years) 21 21.5

Average annual gold production (oz) 657,000 657,000

1. US$1,600/oz for 2013, US$1,500/oz for 2014, and US$1,400/oz for 2015.

2. Press release Jan. 31, 2011 with Technical Report dated Mar. 15, 2011.

3. Press release Sept. 4, 2012 with Technical Report dated Oct. 18, 2012.

4. Includes low-grade stockpile.

48

800

700

600

500

400

300

200

100

0

Gold Production (‘000 oz)

900

850

800

750

700

650

600

550

500

Total Cash Costs (C$/oz)

Gold Production/Cost Profile

Note: Excludes stripping adjustments.

Avg. C$749/oz

49

@ US$850/oz Tonnes

(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.

Detour Lake Reserves & Resources

As at December 31, 2011

50

1,600

1,400

1,200

1,000

800

600

400

200

0

Ou

nces (

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

Stockpile over LOM

0.3-0.5 g/t material

51

Bench

6264m

Bench

6252m

Grade Control

DDH

DDH

RC G/C

RC G/C

52

Decrease dilution

Average movement of rock 4-5 metres

About 450 ounces to the have been

captured thanks to the BMM’s so far

BMM – Blast Movement Monitoring

53

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 Director Technical Services

Laurie Gaborit Director Investor Relations

Jean-Francois Metail Director Reserves and Resources

Greg Miazga Director Construction & Engineering

Bill Snelling Director Corporate Systems & Controls

Christian Brousseau Project Manager

Patrik Gillerstedt Mine Manager

Peter Crossgrove

Louis Dionne

Robert E. Doyle

Ingrid Hibbard

Jonathan Rubenstein

Graham Wozniak

Michael Kenyon

Alex G. Morrison

Gerald Panneton

Management & Directors

Management

Directors

54

Gerald Panneton President & CEO

Email: gpanneton@detourgold.com

Phone: 416.304.0800

Laurie Gaborit Director Investor Relations

Email: lgaborit@detourgold.com

Phone: 416.304.0800

www.detourgold.com

Contact Information