Mr. Stephen de Jong reports

INTEGRA GOLD CORP. LAUNCHES $1,000,000 CROWD-SOURCING GOLD RUSH CHALLENGE WITH THE OBJECTIVE OF FINDING VAL-D'OR'S NEXT BIG GOLD DISCOVERY

Integra Gold Corp. is giving the term data mining a whole new meaning with the launch of its Integra Gold Rush Challenge, a form of crowdsourcing it hopes will lead it to the next big gold discovery at its Sigma-Lamaque gold property in Val d'Or, Que.

The data

In October, 2014, Integra completed the acquisition of the Sigma/Lamaque mine and mill complex immediately adjacent to its Lamaque South project, and in doing so became the owner of six terabytes of historical mining and exploration data in a digital format. The company has spent the last six months compiling this information, which, once completed, will be released to the public in one consolidated database. The data date back to 1933 and include over 30,000 historic drill holes, more than 50,000 gold assays, hundreds of kilometres of mined underground workings, other mining statistics and photos. Integra is in the process of verifying and digitizing additional information, which it expects to release to contestants in September via a special website. Integra says that to its knowledge, no mining company has released such a large amount of proprietary information to the public before.

As highlighted in a recent press release, the company believes there is a wealth of potential gold exploration targets that are expected to be generated as a result of this unprecedented digital database that spans more than 75 years of history (see company press release dated June 18, 2015).

The Gold Rush Challenge

On-line prospectors will analyze and interpret the data to come up with a plan on where they think Integra has the best chance of making a major gold discovery. Further details on what specific types of submissions the company is looking for will be announced in the coming months, prior to the database being made public in September.

The prize of $1-million, which will be broken out into a number of categories, will be awarded to whomever comes up with what the company and the competitions board of advisers believe is the highest-probability location for a major gold discovery. Integra has already made significant headway in raising the award money through sponsorships and plans to announce the winners next March in Toronto at the PDAC mining conference.

"By giving the public access to this data, Integra hopes to tap into the collective brainpower of thousands of participants and save itself years of time and resources to identify high-potential exploration targets we likely wouldn't even know exist," said chief executive officer Stephen de Jong. "By utilizing external sources, this competition allows us to stay focused and disciplined on the work we are doing at our Triangle zone and Lamaque South property, and at the same time move forward with an exciting exploration target."

Integra chairman George Salamis added: "With this digital gold rush, we hope to tap into the most leading-edge and innovative ideas from all sectors of research, not just the mining business. Our expectation is that these new ideas will lead to continued value creation from last year's acquisition of the Sigma-Lamaque mill and mining complex. This competition, which we expect to reveal numerous exploration plans on areas where participants think we should look to make our next gold discovery, will prove to be beneficial for investors, employees, suppliers and other stakeholders. The Integra Gold Rush is also expected to draw unprecedented attention to Quebec and the Abitibi region as one of the world's premier gold mining jurisdictions."

Media and analyst conference call

The company will be hosting a conference call for media and analysts only on June 23, 2015, at 8:30 a.m. PT/11:30 a.m. ET to discuss today's announcement. Interested parties can join through the number and access code listed below:

Dial-in number:  1-866-791-7194

Access code:  39995813

The conference call will be recorded by Integra. All participants are asked to call at least 10 minutes prior to the conference call start time so that an operator can place you into the call. Please note, questions will be limited to media and analysts; however, any additional question not addressed on the conference call can be directed to goldrush@integragold.com.

Partnership with HeroX

Integra Gold is launching the Gold Rush Challenge in partnership with HeroX, a crowdsourcing platform for incentive prizes to discover complex, innovative solutions to the challenges facing companies, governments, non-profits and individuals. HeroX is a spin-off of XPRIZE, the leading organization solving the world's grand challenges by creating and managing large-scale, high-profile, incentivized prize competitions.

Integra hopes to attract the expertise of those in academia, geology, the mining sector and many other disciplines to interpret the data.

"The Gold Rush Challenge follows in the incredibly successful footsteps of the Goldcorp Challenge and the Ansari XPRIZE competition," said XPRIZE chief executive officer and HeroX co-founder Peter H. Diamandis. "We live in a world of incredible cognitive surplus and your ability to tap into brilliance is now unparalleled. By utilizing the HeroX platform, Integra Gold is paving the way for significant innovation in the mining industry by encouraging collaboration and openness."

HeroX says that based on past experience with crowdsourcing projects, it expects hundreds of people or groups from multiple countries to participate in the Integra Gold Rush Challenge.

"The Gold Rush Challenge is a visionary approach to big data analysis that harnesses the power of the incentive prize model to foster collaboration and reward ingenuity," said HeroX chief executive officer Christian Cotichini. "HeroX is delighted to partner with Integra Gold to build awareness for this important competition, which is sure to bring unprecedented levels of innovation to the mining sector."

Endorsements from Mayor of Val d'Or and MNA for the electoral riding of Abitibi-East

Mayor of Val d'Or Pierre Corbeil said this original initiative represents an exceptional showcase event for the City of Val d'Or. "The discovery of these gold mines marked the debut of Val d'Or, founded 80 years ago. The Integra Gold Rush reaffirms our region's mineral potential and will certainly have significant benefits for our region. I salute Integra Gold's boldness in this initiative and wish all the digital prospectors good luck."

"I find this a unique and original initiative to reignite interest in previously dormant gold mines. This is confirmation that Quebec is more present and stronger than ever in maintaining its position as a leading mining jurisdiction. I view a number of interesting economic opportunities for the region," said the MNA for Abitibi-East, Quebec, Guy Bourgeois.

History of the Sigma and Lamaque mines

The Lamaque and Sigma mines are located 500 metres from one another and are hence being treated by the company's exploration and geological team as one system. These mines each produced more than 4.5 million ounces of gold each; however, the Sigma mine was more than 700 m deeper than Lamaque. The Lamaque mine ceased operations in 1985 due to falling commodity prices, labour unrest and development limitations due to insufficient infrastructure, not, as Integra believes, as a result of the mineralized system being exhausted at its lowest levels. The Lamaque mine was the largest gold producer in Quebec for 30 years, from 1955 until it shut down in 1985.

These historic data compiled by the company provide compelling evidence for a downdip extension of the gold-bearing system of the Lamaque mine Main plug continuing at depth. The company believes detailed targeting work on Lamaque Deep as well as other targets in the vicinity will be much more efficiently realized by utilizing the power of a crowdsourcing competition.

Qualified person

The scientific and technical information in this news release has been prepared in accordance with National Instrument 43-101, and reviewed and approved on behalf of the company by Herve Thiboutot, PEng, a qualified person.

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