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CANADA’S INTERMEDIATE GOLD PRODUCER

Scotiabank Mining Conference Toronto – December 5-6, 2017

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Forward Looking Information This presentation contains certain forward-looking information and forward-looking statements, as defined in applicable securities laws (collectively referred to herein as

“forward-looking statements”). Forward-looking statements relate to future events or future performance and reflect current expectations or beliefs regarding future events

and include, but are not limited to, statements with respect to: (i) the amount of mineral resources and mineral reserves and exploration targets; (ii) the amount of future

production over any period; (iii) net present value and internal rates of return of mining operations; (iv) assumptions relating to recovered grade, average ore recovery,

internal dilution, mining dilution and other mining parameters set out in the technical reports, studies and disclosure of the Company; (v) assumptions relating to revenues,

operating cash flow and other revenue metrics set out in the Company’s disclosure materials (vi) mine expansion potential and expected mine life; (vii) expected time frames

for completion of permitting and regulatory approvals; (viii) future capital and operating expenditures; (ix) future exploration plans; (x) future gold prices; and (xi) sources of

and anticipated financing requirements. All statements other than statements of historical fact are forward-looking statements. Often, but not always, forward-looking

statements can be identified by the use of words such as “plans”, “expects”, “is expected”, “budget”, “scheduled”, “estimates”, “continues”, “forecasts”, “projects”, “predicts”,

“intends”, “anticipates”, “targets”, or “believes”, or variations of, or the negatives of, such words and phrases or state that certain actions, events or results “may”, “could”,

“would”, “should”, “might” or “will” be taken, occur or be achieved. Forward-looking statements involve known and unknown risks, uncertainties and other factors, which may

cause actual results to differ materially from those anticipated in such forward-looking statements. The forward-looking statements in this presentation speak only as of the

date of this presentation or as of the date or dates specified in such statements.

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, risks relating to variations in recovered grades and mining dilution, variations in rates of recovery, changes or delays in

mining development and exploration plans, the success of mining, development and exploration plans, changes in project parameters, risks related to the receipt of

regulatory approvals, 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 2016 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 availability of financing for exploration and development activities; operating and capital costs; the Company's ability to attract and retain skilled staff;

the mine development and production schedule and related costs, dilution control; sensitivity to metal prices and other sensitivities; the supply and demand for, and the level

and volatility of the price of, gold; timing of the receipt of regulatory and governmental approvals for development projects and other operations; the timing and results of

consultations with the Company’s Aboriginal partners; the supply and availability of consumables and services; the exchange rates of the Canadian dollar to the U.S. dollar;

energy and fuel costs; required capital investments; estimates of net present value and internal rate of returns; the accuracy of reserve and resource estimates, production

estimates and capital and operating cost estimates and the assumptions on which such estimates are based; 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.

All monetary amounts are in U.S. dollars unless otherwise stated.

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The Company has included non-IFRS measures in this presentation: total cash costs and all-in sustaining costs,. The Company believes that these measures, in addition to

conventional measures prepared in accordance with IFRS, provide investors an improved ability to evaluate the underlying performance of the Company. The non-IFRS measures

are intended to provide additional information and should not be considered in isolation or as a substitute for measures of performance prepared in accordance with IFRS. These

measures do not have any standardized meaning prescribed under IFRS, and therefore may not be comparable to other issuers. Other companies may calculate these measure

differently.

Detour Gold reports total cash costs on a sales basis. Total cash costs include production costs such as mining, processing, refining and site administration, agreements with

Aboriginal communities, less non-cash share-based compensation and net of silver sales divided by gold ounces sold to arrive at total cash costs per gold ounce sold. The measure

also includes other mine related costs incurred such as mine standby costs and current inventory write downs. Production costs are exclusive of depreciation and depletion.

Production costs include the costs associated with providing the royalty in kind ounces.

The Company believes the measure all-in sustaining costs more fully defines the total costs associated with producing gold. The Company calculates all-in sustaining costs as the

sum of total cash costs (as described above), share-based compensation, corporate general and administrative expense, exploration and evaluation expenses that are sustaining in

nature, reclamation cost accretion, sustaining capital including deferred stripping, and realized gains and losses on hedges due to operating and capital costs, all divided by the gold

ounces sold to arrive at a per ounce figure.

Costs excluded from all-in sustaining costs are non-sustaining capital expenditures and exploration costs that are expected to materially increase production, financing costs and tax

expense. Consequently, this measure is not representative of all of the Company’s cash expenditures. In addition, the calculation of all-in sustaining costs does not include

depreciation and depletion expense as it does not reflect the impact of expenditures incurred in prior periods.

Total site costs and total site costs per ounce

Detour Gold reports total site costs and total site costs per ounce on a sales basis. Total site costs include production and operating costs such as mining, processing, site general

and administration, bullion shipment, refining, agreements with Aboriginal communities, capital costs (including closure costs) and net of silver sales.

The Company calculates total site costs per ounce as the sum of total site costs (as described above) divided by the total gold ounces sold. Gold ounces produced is noted before

delivering the royalty in kind ounces.

Notes to Investors

The scientific and technical content of this presentation was reviewed, verified and approved by Drew Anwyll, P.Eng., Senior Vice President Technical Services, a Qualified Person

as defined by Canadian Securities Administrators National Instrument 43-101 “Standards of Disclosure for Mineral Projects”.

Qualified Persons

Non-IFRS Financial Performance Measures

All monetary amounts are in U.S. dollars unless otherwise stated.

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Unmatched combination of long

life and large production profile

Competitive cost profile

relative to industry peers

Production growth

Top-ranked jurisdiction

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DGC Investment Thesis

Strong exploration potential

5 |

#1 Large Scale/Long Life Mine

100% OWNERSHIP IN QUALITY ASSET

2016YE Reserves (M oz) 2017 Production Guidance (K oz)

AEM/YRICanadianMalartic

GEleonore

AEMLaRonde

GRed Lake

16.5

7.7

4.6 3.1

2.0

AEM/YRICanadianMalartic

GEleonore

AEMLaRonde

GRed Lake

600 550-

600

315 300 315

DGC

Detour

Lake

DGC

Detour

Lake

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OPERATIONS GROWTH BALANCE SHEET

Mine and mill optimization

Organic growth Continue debt reduction

Realize on economies of scale

Add value with Zone 58N

Maintain capital discipline

DGC Strategic Focus

232

457 506 538

550- 600

600- 670

2013 2014 2015 2016 2017E 2018E

Gold Production (K oz)

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PRODUCTION

421 K OZ gold

YTD 2017 Highlights

COSTS FINANCIALS

$721

$1,092

TCC1

/oz sold

AISC1

/oz sold

$112 EARNINGS FROM MINE OPERATIONS million

$114 CASH BALANCE million

$500

YTD debt reduction of $58 M

Estimated year-end cash & cash equivalent of $140-150 M

73.1 MT mined

16.4 MT milled

1. Refer to the section on Non-IFRS Performance Measures on slide 3. Reconciliation of these measures is described in the

Q3’17 MD&A.

| 7

BANK DEBT FACILITY CLOSED million

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Q3 2017 Operating Results

total mined 26.1 MT

3.8 strip ratio

MT ore milled

0.86 G/T AU head grade

% recovery

5.7

90

Throughput rate at 61,548 tpd

Record quarterly throughput

Head grade impacted by

unfavorable grade

reconciliation in Central Zone

and higher mining dilution

Commissioning of lead nitrate

system continuing

Mining rates of 283,000 tpd

Record quarterly mining rates

Campbell pit on schedule to

mine Bench 148 by year-end

On target for 100 Mt in 2017

5.7 stockpiles MT

g/t Au @ 0.68

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Q3 2017 Costs

1. Refer to the section on Non-IFRS

Performance Measures on slide 3.

Reconciliation of these measures is

described in the Q3’17 MD&A.

Q3 AISC:

AISC decreased by $91/oz from prior

quarter mainly due to lower milling costs

and lower corporate administration

Q3 Sustaining Capital

On track with budget TCC1 ($/oz sold)

Q2’17 Q3’17

AISC1 ($/oz sold)

$1,032 $1,123

$668 $706

Q3’17 YTD

Mining $14.8 $73.6

Tailings $14.3 $22.6

Processing $2.2 $6.8

Infrastructure, G&A & other $7.9 $12.9

Total sustaining ($ M) $39.2 $115.9

Capitalized stripping ($ M) $6.3 $18.3

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Mine Equipment

2 x CAT 7495 shovels

4 x CAT 6060 shovels

32 x CAT 795 trucks

Phase 1: Campbell

Pit Area

Phase 2 (pre-stripping)

October 13, 2017

Phase 1: West

(calcite zone)

Phase 2

Detour Lake Open Pit

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Mine Ops Initiatives (with USC)

Consulting started in April 2017

Project Schedule Summary

Review to commence in 2018 at processing plant

Now here

No. of Weeks

Drill

Load/Blast

Shovel Truck/Dispatch

Muck

Bench Clean-up & Pattern Prep

Mine Mobile Maintenance

Materials Management

0 5 10 15 20 25 30 35 40 45

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2017 Guidance

550-600 THOUSAND oz gold

$690-750 TCC per oz sold

1

$1,025-1,125 All-in sustaining costs

AISC per oz sold

1

Estimated production

Total cash costs

Key budget assumptions:

Gold price of $1,200/oz, diesel fuel price of C$0.70 per litre; power

cost of C$0.03/kWh; and CAD/US FX rate of 1.30.

1. Refer to the section on Non-IFRS Performance Measures on slide 3 of this presentation.

Targeting

Mid-range of

Guidance

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Strong Balance Sheet

Closed $500 M bank facility

in July

~$330 M deposited with Note

Trustee to be paid to holders

at maturity

Carry cost of interest reduced

by ~2%

Future earnings to benefit

from elimination of accretion

charges:

› YTD represents $0.13 on

EPS

-$82

-$142 -$142 -$162

-$180 -$200¹

$40

$76 $93

$109 $133

$157 $178

$194

Q4'15 Q1'16 Q2'16 Q3'16 Q4'16 Q1'17 Q2'17 Q3'17

-$200

-$100

$0

$100

$200

Cumulative FCF before financing activities ($M)

1. $20.5 M is on deposit with Note Trustee until maturity

(November 31, 2017).

Cumulative Debt repayments ($M)

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5-Year Mine Ramp-up

102

112

126

21.5

22

22.5 22.5

23 23

2017 2018 2019 2020 2021 2022

Mine Plan (Mt/yr)

Mine

Mill

LOM Plan Targets

6 shovels

max. 32

trucks

7 shovels

max. 34

trucks

Shovel #8 in

capex (not

in mine

plan)

Detour Lake Pit

North Pit

131 128 127

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Organic Growth Pipeline

WEST DETOUR

DEVELOPMENT

ZONE 58N

LOWER DETOUR

Provincial ESR filed

In LOM plan West

Detour production

in 2025

Reserves: 1.8 M oz

Evaluating options for

mining widths and cut-off

grade for different UG

mining scenarios

Potential for high-

grade UG mine

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BURNTBUSH

CLAIM BLOCK

New claim block

staked 70 km

south of Detour

Lake

Airborne

geophysical

survey completed

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West Detour Project

Walter Lake

North Pit

West Detour Pit

Detour Lake Pit

Permitting and Consultation Progress

Permitting stays under Provincial EA process;

targeting provincial approval by mid-2018

Government led consultation

starting this fall

Agreement signed with TTN

MCFN alignment on ESR

anticipated prior to year-end

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Zone 58N

Next steps leading to decision to proceed

with Advanced Exploration program

Completed summer drilling program of

10,789 m in 27 holes

Adding 4,000 m of drilling for further

testing of block model

› Evaluation prior to completing block

model and resource estimate

› Completion of conceptual mine design

› Preliminary cost for AdEx program

(infrastructure and UG development)

Conceptual

UG Design for

Zone 58N

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Closing Comments

2017 to be Strongest Year for

Detour Gold:

Operational improvements

(record mining and milling rates)

and more consistent results

Achieved target of having not

more than $300 M in debt (post

Notes repaid)

End 2017 with $140-150 M of

cash & cash equivalents

Well Positioned for a Stronger 2018

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DETOUR GOLD

INTERMEDIATE GOLD PRODUCER

THANK YOU!

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ADDITIONAL information

Safety Performance

Shareholder Information

Operational Statistics

Property Geology Map

Summary LOM Plan

Year-end 2016 Reserves &

Resources

Analyst Coverage

Management & Directors

Contact Information

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Total Recordable Injury

Frequency Rate (TRIFR)1

(12 Month Rolling Average)

Safety Performance

1. TRIFR: Total recordable injuries x 200,000 hours

divided by total man hours worked.

0.0

1.0

2.0

3.0

DGC Target Contractor

Q1’17 Q4’16 Q2’17 Q3’17

2.44 1.60 1.45

Q3 2017:

Safety performance below Q3

target

Hazardous Operations Review:

› All chemical mixing and

distribution systems

› Informs Management of

Change for SOP’s, redesign

and training

› Job Task Observations to drive

further refinement

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1. Conversion price for the Notes is $38.50.

2. Includes Fidelity Investments Canada, Fidelity Management & Research Company and Fidelity Institutional Asset Management.

Shareholder Information

>80% INSTITUTIONS TOTAL

4.8 M Share options

8.3 M Convertible notes 1

187.9 M FULLY DILUTED

174.8 M Issued & outstanding

Share Structure (03/31/2014) Top Shareholders

10%

$113.7 MILLION cash and cash equivalents at September 30, 2017

Share Structure (October 25, 2017) Top Shareholders

Van Eck Associates

8% BlackRock

6% Fidelity 2

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Operational Statistics

Q3’16 Q4’16 Q1’17 Q2’17 Q3’17

Ore mined (Mt) 5.0 5.8 4.8 4.9 5.4

Waste mined (Mt) 18.5 15.0 17.0 20.4 21.0

Total mined (Mt) 23.5 20.9 21.8 25.2 26.1

Strip ratio (waste:ore) 3.7 2.6 3.6 4.2 3.8

Mining rate (tpd) 256,000 227,000 242,000 277,000 283,000

Ore milled (Mt) 5.2 5.5 5.2 5.5 5.7

Mill grade (g/t Au) 0.88 0.90 0.88 0.95 0.86

Recovery (%) 87 90 89 90 90

Mill throughput (tpd) 56,453 60,052 58,114 60,259 61,548

Mill availability (%) 84 86 85 87 88

Ounces produced (oz) 127,758 143,512 131,418 150,138 139,861

Ounces sold (oz) 113,845 144,668 134,213 142,970 128,498

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Property Geology Map

25 |

2017 LOM Plan Summary

Key Statistics 2017 LOM Plan

Proven & Probable Reserves (M oz)1 16.5

Average gold grade (g/t) 0.97

Estimated gold recovery (%) 92.7

Mine life (years) ~23

Average annual gold production (oz) 656,000

Total Site Costs 2 $758/oz sold

1. Estimated using a gold price of $1,000/oz and a US$/C$ exchange rate of 1.10. Refer to Slide 27 for additional details.

2. Refer to the section on Non-IFRS Performance Measures on slide 3.

Mining rates for Detour Lake pit ramping up from 100 Mt in 2017 to

125 Mt in 2022

Mill throughput increasing from 21.5 Mt in 2017 to 23 Mt in 2021

North pit starts in 2019 / West Detour pit starts in 2025

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2017 LOM Production Plan

Yearly Average per Period Total

2017-

18

2019-

20

2021-

22

2023-

25

2026-

28

2029-

31

2032-

34

2035-

37

2038-

401 LOM LOM

Ore milled (Mt) 21.8 22.5 23.0 23.0 23.0 23.0 23.0 23.0 22.5 22.8 530

Head grade (g/t Au) 0.97 0.82 1.04 0.90 0.90 0.95 0.96 1.10 1.04 0.97 0.97

Gold recovery (%) 90.6 92.1 92.9 92.8 92.8 92.9 92.9 93.2 93.3 92.7 92.7

Gold production (k oz) 617 543 711 616 619 652 662 760 702 656 15,250

Total mined (Mt) 107.0 127.2 129.0 125.8 117.3 90.7 80.1 50.7 24.5 93.6 2,175

Strip ratio (waste:ore) 3.93 6.10 3.70 4.63 4.18 3.07 2.53 1.38 0.60 3.33 3.33

1. Average for the last years at 2.25 years.

27 |

(1) Includes all site costs including bullion delivery, refining and costs related to agreements with Aboriginal communities.

(2) Includes closure costs.

(3) US$/C$ exchange rate of 1.30 in 2017, 1.27 in 2018, and 1.25 in 2019+.

(4) Ounces sold = Production x 97.95% (= 100% - 2% NSR - 0.05% Refiners take).

2-Year Average 2017LOM

Units 2017-18 2019-20 2021-22 Average Total

Gold Production k oz 617 543 711 656 15,250

Gold Sales4 k oz 604 531 696 643 14,937

Site Costs

Operating Costs1 C$ M 519 482 500 471 10,960

Sustaining Capital 2 C$ M 209 173 96 107 2,488

Deferred Stripping C$ M 34 134 30 38 884

Total Capital Costs C$ M 243 307 127 145 3,372

Total Site Costs C$ M 762 789 627 616 14,332

US$/oz sold 980 1,187 718 758 -

Cash Flow

Site Cash Flow3

(after Tax) C$ M 186 52 448 301 7,038

2017 LOM Plan Financial Summary

NPV5% (after tax) = C$3.7 B

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Year-end 2016 Reserves & Resources Notes:

1. The Company’s mineral resources and

reserves conform with generally accepted

definitions and guidelines given in the

Canadian Institute of Mining, Metallurgy

and Petroleum (CIM) Standards on

Mineral Resources and Mineral Reserves

as required by NI 43-101.

2. Mineral reserves were estimated using a

gold price of US$1,000/oz and mineral

resources were estimated using a gold

price of US$1,200/oz at a US$/C$

exchange rate of 1.10.

3. Mineral reserves and resources were

based on a cut-off grade of 0.50 g/t Au.

4. LG Fines (sourced from material grading

0.40-0.50 g/t Au) classified as Measured

and Indicated were reported as Probable

mineral reserves and included in the mine

plan.

5. Further information, including key

assumptions, parameters, and methods

used to estimate mineral resources and

mineral reserves are described in the

Technical Report on the Detour Lake

operation, dated March 22, 2017.

6. Mineral resources are reported exclusive

of mineral reserves. Mineral resources that

are not mineral reserves do not have

demonstrated economic viability.

7. Totals may not add due to rounding.

At Dec. 31, 2016

Reserves Tonnes

(millions)

Grade

(g/t Au)

Contained

Gold Ounces

(000’s oz)

Detour Lake Pit Proven 87.7 1.27 3,579

Probable 353.8 0.92 10,490

Stockpiles 7.0 0.65 144

Total P&P 448.5 0.99 14,214

West Detour Pit Proven 1.9 0.96 60

Probable 53.0 0.94 1,596

North Pit Probable 6.0 0.98 187

Total P&P 60.9 0.94 1,843

LG Fines Probable 20.9 0.60 403

Total P&P 530.2 0.97 16,460

Resources

Detour Lake Pit Measured 17.3 1.32 735

Indicated 71.2 0.98 2,255

M+I 88.5 1.05 2,991

West Detour Pit Measured 0.3 0.93 9

Indicated 28.5 0.88 806

North Pit Indicated 2.1 0.93 64

M+I 31.0 0.88 878

Total M+I 119.5 1.01 3,869

Detour Lake Mine Inferred 35.7 0.79 906

West Detour Pit Inferred 9.2 0.95 280

North Pit Inferred 0.1 0.85 2

Total Inferred 44.9 0.82 1,188

29 |

Analyst Coverage (18) Firm Analyst

Target Price at

November 16, 2017

Bank of America Merrill Lynch Michael Jalonen $19.50

Beacon Securities Michael Curran $17.75

BMO Brian Quast $29.00

Canaccord Rahul Paul $22.50

CIBC World Markets Cosmos Chiu $20.00

Cormark Securities Richard Gray $23.00

Credit Suisse Anita Soni $16.00

Eight Capital Research Craig Stanley $16.65

Global Mining Research David Radclyffe/David Cotterell $18.00

GMP Securities Ian Parkinson $19.00

Haywood Kerry Smith $26.00

Macquarie Mike Siperco $22.00

National Bank Mike Parkin $21.50

Paradigm Don Blyth/Don MacLean $25.50

Raymond James Farooq Hamed $23.00

RBC Dan Rollins $20.00

Scotiabank Trevor Turnbull $18.00

TD Dan Earle $23.00

Average target $21.13

30 |

Paul Martin President and CEO

James Mavor CFO

Julie Galloway General Counsel &

Corporate Secretary

Drew Anwyll Sr VP Technical Services

Derek Teevan Sr VP Corporate &

Aboriginal Affairs

Charles Hennessey Mine General Manager

Laurie Gaborit VP Investor Relations

Ruben Wallin VP Environment & Sustainability

Alberto Heredia Controller

Jacques McMullen Corporate Technical Advisor

Lisa Colnett

Edward C. Dowling

Robert E. Doyle

Paul Martin

Alex G. Morrison

Jonathan Rubenstein

André Falzon

Ingrid Hibbard

Michael Kenyon

Management & Directors

MANAGEMENT

DIRECTORS

31 |

Laurie Gaborit VP Investor Relations

Email: lgaborit@detourgold.com

Phone: 416.304.0581

Paul Martin President and Chief Executive Officer

Email: pmartin@detourgold.com

Phone: 416.304.0800

www.detourgold.com

Contact Information