Osisko Intersects 2.51 g/t Au Over 73.0 Metres at Garrison

Osisko Mining (TSX:OSK) (“Osisko” or the “Corporation”) is pleased to announce the final results from the 2017 drill program at its 100% owned Garrison gold project located in Garrison Township, Ontario. Over 85,000 metres of new drilling have been conducted by Osisko on the Garrison Project since its acquisition in late 2015. A total of fifteen new intercepts in seven holes are reported in this release, with significant assay results presented in the table below.

Significant new results include: 2.51 g/t Au over 73.0 metres in OSK-G17-453; 1.98 g/t Au over 14.5 metres and 1.76 g/t Au over 25.5 metres in OSK-G17-461; 2.18 g/t Au over 9.0 metres in OSK-G17-445; and 1.27 g/t Au over 22.3 metres in OSK-G17-467.

About the Garrison Project

The Garrison Project area is comprised of 214 mineral claims, 25 mining leases, and 87 patent claims encompassing approximately 8,000 hectares.

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