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First Mining Announces Exploration and Infill Drilling Results FOR Its Goldlund GOLD Project

Drill Results

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FIRST MINING ANNOUNCES EXPLORATION AND INFILL DRILLING

RESULTS FOR ITS GOLDLUND GOLD PROJECT

February 8, 2018

VANCOUVER, BC, CANADA – First Mining Gold Corp. (“First Mining” or the “Company”)

is pleased to announce the exploration and infill drilling results, comprising 14 drill holes, from

its diamond drill program within Zones 1 and 5 (See Tables 1 and 2) at First Mining’s 100%

owned Goldlund Gold Project (“Goldlund”), located near the town of Sioux Lookout in

northwestern Ontario, Canada.

Drilling Highlights:

 Hole GL-17-128 intersected 3.0 metres of 10.76 grams per tonne gold

o including 1.0 metre of 30.27 grams per tonne gold

 Hole GL-17-119 intersected 16.0 metres of 1.15 grams per tonne gold

o including 2.0 metres of 3.69 grams per tonne gold

 Hole GL-17-126 intersected 10.0 metres of 1.50 grams per tonne gold

o including 2.0 metres of 3.58 grams per tonne gold

Note: Assaying for the 2017 and 2018 Goldlund drill programs are being done by SGS Canada Inc. (“SGS”) at their laboratories

in Red Lake, ON. and Burnaby, BC. Reported widths are drilled core lengths; true widths are unknown at this time. Assay values

are uncut.

The 2017 /2018 drilling campaign s at Goldlund are designed to accomplish four significant

objectives:

 Convert Inferred resources within the resource area (Zones 1, 5 and 7) into the

Measured and Indicated resources category;

 Test drill deeper exploration targets within Zone 7;

 Identify and add additional mineralization within areas that are adjacent to the current

resource boundary; and

 Test drill additional exploration targets within other areas (outside of the current

resource boundary) within the Goldlund Gold Property.

On February 5, 2018, the Company released results of the four deep Zone 7 holes (GL-17-

010, GL -17-051, GL -17-106 and GL -17-108). All four holes demonstrated that gold

mineralization at Goldlund continues to considerable depths.

The 14 drill hole results (Figure 1) presented in this news release are from the following Zones:

 GL-17-114; GL-17-115; GL-17-118 and GL -17-119 are infill holes targeting the area

between Zones 1 and 5. All four holes intersected gold mineralization;

 GL-17-116; GL-17-117 and GL-17-123 to GL-17-128 are also infill drill holes that are

located within Zone 1. Six of the eight holes intersected gold mineralization; and

 GL-17-120 and GL -17-121 were exploration drill holes that were targeting potential

additional hanging wal l mineralization outside of the current resource area, south of

Zone 5. Neither of these holes intersected gold mineralization.

In February 2018, First Mining will complete the remaining infill holes within Zones 1 and 5 and

will then commence drilling regional exploration targets that are outside the current resource

boundary.

Jeff Swinoga, the Chief Executive Officer of First Mining, stated, “These latest drill holes were

designed to provide greater confidence in the gold mineralization which is currently confined

within a strike length of only 2 to 3 kilometres, whereas the total estimated strike length is

estimated to be approximately 30 kilometres . Our next focus will be to carry out exploration

drilling on several highly prospective and underexplored areas of the Goldlund property. I am

very excited to see how these future drill results will support our confidence in the continued

gold mineralization along strike at Goldlund.”

Gold observed during the current drilling program at Goldlund occurs both as fine

disseminations in quartz vein stockworks and as more discrete larger grains up to 2 mm

spatially associated with pyrite in the quartz veins. Calaverite, a gold telluride mineral, has

been noted occasionally in higher grade intervals on fracture surfaces in the quartz veins.

Higher grade gold distribution in the granodiorite dike is often, but not always, associated with

zones of more intense quartz stockworking and potassic alteration. Figure 2 below displays a

cross-section of the ge ology and gold mineralization for drill holes GL-17-125 to GL-17-127,

and GL-17-116.

Table 1. Drill Hole Assay Results from Goldlund

Assaying for the 2017 and 2018 Goldlund drill programs are being done by SGS at their laboratories in Red Lake, Ontario and

Burnaby, BC. Prepared samples are analyzed for gold by either Bulk Leach Extractable Gold (BLEG) assay techniques or by

lead fusion fire assay with an atomic absorption spectrometry (AAS) f inish. Multi-element analysis on the mineralized zones is

also being undertaken by two-acid aqua regia digestion with ICP-MS and AES finish.

Hole ID From (m) To (m) Length (m) Au g/t

GL-17-114 58.0 88.0 30.0 0.13

inc 86.0 88.0 2.0 0.52

GL-17-115 270.0 310.0 40.0 0.19

inc 278.0 284.0 6.0 0.49

and inc 292.0 294.0 2.0 1.02

and 436.0 438.0 2.0 1.66

and 578.0 622.0 44.0 0.78

inc 578.0 584.0 6.0 1.97

and inc 578.0 580.0 2.0 5.11

and inc 590.0 606.0 16.0 1.07

and inc 600.0 602.0 2.0 4.11

GL-17-116 303.0 305.0 2.0 0.83

and 341.0 343.0 2.0 0.80

and 385.0 387.0 2.0 3.12

GL-17-117 238.9 326.0 87.1 0.41

inc 238.9 248.0 9.1 1.26

and inc 286.0 296.0 10.0 1.56

and inc 294.0 296.0 2.0 6.66

GL-17-118 176.0 178.0 2.0 0.59

and 686.5 687.5 1.0 1.54

GL-17-117

GL-17-114

GL-17-115

GL-17-116

GL-17-118

Table 1 (continued). Drill Hole Assay Results from Goldlund

Hole ID From (m) To (m) Length (m) Au g/t

GL-17-119

GL-17-119 277.0 293.0 16.0 1.15

inc 281.0 287.0 6.0 2.11

and inc 281.0 283.0 2.0 3.69

and 444.0 470.0 26.0 0.42

inc 446.0 448.0 2.0 4.31

and 712.0 714.0 2.0 1.15

GL-17-120 GL-17-120 no significant mineralization

GL-17-121 GL-17-121 no significant mineralization

GL-17-123 GL-17-123 no significant mineralization

GL-17-124 GL-17-124 no significant mineralization

GL-17-125

GL-17-125 170.0 226.0 56.0 0.39

inc 170.0 172.0 2.0 1.59

and inc 192.0 194.0 2.0 2.26

and inc 218.0 220.0 2.0 2.47

and inc 224.0 226.0 2.0 1.93

GL-17-126

GL-17-126 298.0 308.0 10.0 1.50

inc 298.0 300.0 2.0 3.58

and 318.0 320.0 2.0 0.97

GL-17-127

GL-17-127 284.0 330.0 46.0 0.51

inc 284.0 286.0 2.0 2.40

and inc 296.0 298.0 2.0 1.84

and inc 328.0 330.0 2.0 3.04

GL-17-128

GL-17-128 135.0 137.0 2.0 1.05

and 181.0 183.0 2.0 1.65

and 212.0 215.0 3.0 10.76

inc 214.0 215.0 1.0 30.27

Figure 1. Plan Map

Figure 2. Cross-Section through the Goldlund Project

Table 2. Drill Hole Locations

QA/QC Procedures

The QA/QC program for the 2017 drilling program at Goldlund consists of the submission of

duplicate samples and the insertion of certified reference materials and blanks at regular

intervals. These are inserted at a rate of one standard for every 20 samples (5% of total) and

one blank for every 30 samples (3% of total). The standards used in the 2017 program consist

of 5 different gold grades ranging from 1 to 9 g/t, and are sourced from CDN Resource

Laboratories in Langley, BC. Blanks have been sourced locally from barren granitic material.

Field duplicates from quartered core, as well as ‘coarse’ or ‘pulp’ duplicates taken from coarse

reject material or pulverized splits, are also submitted at regular intervals with an insertion rate

of 4% for field duplicates and 4% for coarse or pulp duplicates. Additional selected duplicates

are being submitted for screened metallic fire assay analysis and to an umpire lab for check

assaying. SGS also undertake their own internal coarse and pulp duplicate analysis to ensure

proper sample preparation and equipment calibration.

Dr. Chris Osterman, P.Geo., COO of First Mining, is the “qualified person” for the purposes of

National Instrument 43-101 Standards of Disclosure for Mineral Projects (“NI 43-101”) and he

has reviewed and approved the scientific and technical disclosure contained in this news

release.

ABOUT THE GOLDLUND PROJECT

The Goldlund deposit is situated within a land package of approximately 280 square kilometres

(28,000 hectares) referred to as the Goldlund Gold Project. The Property has a strike -length

of over 50 kilometres in the Wabigoon Subprovince. Goldlund is an Archean lode-gold project

located in northwestern Ontario, approximately 60 kilometres from the township of Dryden.

The claims that make up the land package cover the historic Goldlund and Windward mines.

On January 9, 2017, the Company announced an initial mineral resource estimate for Goldlund

that was prepared by WSP Canada Inc. in accordance with NI 43–101. At a 0.4 g/t Au cut-off

grade, the Goldlund deposit contains pit constrained Indicated Resources of 9.3 million tonnes

at 1.87 g/t Au, or 560,000 ounces of gold. At a 0.4 g/t Au cut -off grade, the Goldlund deposit

contains pit constrained Inferred Resources of 40.9 million tonnes at 1.33 g/t Au, or 1,750,000

ounces of gold. The technical report for this resource estimate , which is titled “Technica l

Report and Resource Estimation Update on the Goldlund Project” and is dated February 7,

2017, is available under the Company’s SEDAR profile at www.sedar.com, and is also

available on the Company’s website at www.firstmininggold.com.

Hole ID Azimuth ° Dip ° Final Depth (m) UTM East UTM North Section

GL-17-114 0 -90 692 547191 5527452 547200E

GL-17-115 0 -90 653 546979 5527320 547000E

GL-17-116 0 -90 692 546702 5527170 546700E

GL-17-117 153 -69 740 546966 5527541 546950E

GL-17-118 153 -90 744.4 547237 5527379 547250E

GL-17-119 0 -90 749 547214 5527414 547200E

GL-17-120 333 -50 350 547360 5527190 547350E

GL-17-121 333 -50 476 547370 5527180 547350E

GL-17-123 0 -90 350 546700 5527225 546700E

GL-17-124 0 -90 413 546700 5527200 546700E

GL-17-125 0 -90 230 546750 5527300 546750E

GL-17-126 0 -90 347 546750 5527275 546750E

GL-17-127 0 -90 404 546750 5527250 546750E

GL-17-128 0 -90 221 546800 5527310 546800E

ABOUT FIRST MINING GOLD CORP.

First Mining Gold Corp. is an emerging development company with a diversified portfolio of

gold projects in North America. Having assembled a large resource base of seven million

ounces of gold in the Measured and Indicated categories and five million ounces of

gold in the Inferred category in mining friendly jurisdictions of eastern Canada, First Mining

is now focused on advancing its assets towards productio n. The Company currently holds a

portfolio of 25 mineral assets in Canada, Mexico and the United States.

For further information, please contact Patrick Donnelly, President at 604-639-8854, or Derek

Iwanaka, Vice President of Investor Relations at 604 -639-8824, or visit our website at

www.firstmininggold.com.

ON BEHALF OF FIRST MINING GOLD CORP.

“Keith Neumeyer”

Keith Neumeyer

Chairman

Cautionary Note Regarding Forward-Looking Statements

This news release includes certain "forward -looking information” and "forward -looking statements”

(collectively "forward-looking statements”) within the meaning of applicable Canadian and United States

securities legislation including the United States Private Securities Litigation Reform Act of 1995. These

forward-looking statements are made as of the date of this news release. Forward -looking statements

are frequently, but not always, identified by words such as "expects”, "anticipates”, "believes”, “plans”,

“projects”, "intends”, "estimates”, “envisages”, "potential”, "possible”, “strategy”, “goals”, “objectives”, or

variations thereof or stating that certain actions, events or results "may", "could", "would", "might" or

"will" be taken, occur or be achieved, or the negative of any of these terms and similar expressions.

Forward-looking statements in this news release relate to future events or future performance and reflect

current estimates, predictions, expectations or beliefs regarding future events and include, but a re not

limited to, statements with respect to: (i) the estimated amount and grade of Mineral Resources at

Goldlund; and (ii) the potential for exploration upside at Goldlund. All forward -looking statements are

based on First Mining's or its consultants' current beliefs as well as various assumptions made by them

and information currently available to them. The most significant assumptions are set forth above, but

generally these assumptions include: (i) the presence of and continuity of metals at Goldlund at

estimated grades; (ii) the capacities and durability of various machinery and equipment; and (iii) success

in realizing proposed drilling programs. Although the Company’s management considers these

assumptions to be reasonable based on information cur rently available to it, they may prove to be

incorrect.

By their very nature, forward -looking statements involve inherent risks and uncertainties, both general

and specific, and risks exist that estimates, forecasts, projections and other forward-looking statements

will not be achieved or that assumptions do not reflect future experience. We caution readers not to

place undue reliance on these forward-looking statements as a number of important factors could cause

the actual outcomes to differ materially f rom the beliefs, plans, objectives, expectations, anticipations,

estimates assumptions and intentions expressed in such forward-looking statements. These risk factors

may be generally stated as the risk that the assumptions and estimates expressed above do not occur

as forecast, but specifically include, without limitation: (i) risks relating to variations in the mineral content

within the material identified as Mineral Resources from that predicted; (ii) general risks related to

exploration drilling programs; (iii) developments in world metals markets; (iv) risks relating to fluctuations

in the Canadian dollar relative to the US dollar; (v) management’s discretion to refocus the Company’s

exploration efforts and/or alter the Company’s short and long term business plans; and (vi) the additional

risks described in First Mining's Annual Information Form for the year ended December 31, 2016 filed

with the Canadian securities regulatory authorities under the Company’s SEDAR profile at

www.sedar.com, and in First Mining’s Annual Report on Form 40-F filed with the SEC on EDGAR.

First Mining cautions that the foregoing list of factors that may affect future results is not exhaustive.

When relying on our forward-looking statements to make decisions with respect to First Mining, investors

and others should carefully consider the foregoing factors and other uncertainties and potential events.

First Mining does not undertake to update any forward -looking statement, whether written o r oral, that

may be made from time to time by the Company or on our behalf, except as required by law.

Cautionary Note to United States Investors

This news release has been prepared in accordance with the requirements of the securities laws in effect

in Canada, which differ from the requirements of U.S. securities laws. Unless otherwise indicated, all

resource and reserve estimates included in this news release have been prepared in accordance with

National Instrument 43-101 Standards of Disclosure for Mineral Projects ("NI 43-101”) and the Canadian

Institute of Mining, Metallurgy, and Petroleum 2014 Definition Standards on Mineral Resources and

Mineral Reserves. NI 43 -101 is a rule developed by the Canadian Securities Administrators which

establishes standards for all public disclosure an issuer makes of scientific and technical information

concerning mineral projects. Canadian standards, including NI 43 -101, differ significantly from the

requirements of the United States Securities and Exchange Commission ("SEC”), and mineral resource

and reserve information contained herein may not be comparable to similar information disclosed by U.S.

companies. In particular, and without limiting the generality of the foregoing, the term "resource” does

not equate t o the term "reserves”. Under U.S. standards, mineralization may not be classified as a

"reserve” unless the determination has been made that the mineralization could be economically and

legally produced or extracted at the time the reserve determination i s made. The SEC's disclosure

standards normally do not permit the inclusion of information concerning "measured mineral resources”,

"indicated mineral resources” or "inferred mineral resources” or other descriptions of the amount of

mineralization in mineral deposits that do not constitute "reserves” by U.S. standards in documents filed

with the SEC. Investors are cautioned not to assume that any part or all of mineral deposits in these

categories will ever be converted into reserves. U.S. investors shou ld also understand that "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 rules, estimated "inferred mineral

resources” may not form the basis of feasibility or pre -feasibility studies except in rare cases. Investors

are cautioned not to assume that all or any part of an "inferred mineral resource” exists or is economically

or legally mineable. Disclosure of "contained ounces” in a resource is permitted disclosure under

Canadian regulations; however, the SEC normally only permits issuers to report mineralization that does

not constitute "reserves” by SEC standards as in -place tonnage and grade without reference to unit

measures. The requirements of NI 43-101 for identification of "reserves” are also not the same as those

of the SEC, and reserves reported by the Company in compliance with NI 43 -101 may not qualify as

"reserves” under SEC standards. Accordingly, information concerning mineral deposits set forth herein

may not be comparable with information made public by companies that report in accordance with U.S.

standards.