2011 Program Highlights:

• Significant Extension of Main Zone Veins to the East
• Two Vein Extension Zones Discovered in North Main Zone
• New Vein Zone Discovered Between Main and Far North Zones

Elko, NV & Vancouver, BC – February 14, 2012 – Klondex Mines Ltd. (TSX: KDX), a Nevada gold exploration and development company, today released the final results from its 2011 exploration program at its 100%-owned Fire Creek gold-silver project in north-central Nevada. The 2011 program succeeded in locating previously unknown gold- and silver-bearing veins. In this release Klondex reports assay results for the final 21 holes of its 33-hole 2011 surface-drilling program; Klondex reported the href="http://klondexmines.us2.list-manage1.com/track/click?u=29546d733027e4548f882e24c&id=46a3ce493c&e=0682d10d06">(click here) shows the newly encountered veins (+5 g Au/t gold) in magenta and gold bearing shear zones (>1 g Au/t and <5 g Au/t) in yellow that were identified in 2011. href="http://klondexmines.us2.list-manage.com/track/click?u=29546d733027e4548f882e24c&id=ae62291d74&e=0682d10d06">www.klondexmines.com):

Klondex Mines is focused on the exploration and development of its 100% owned Fire Creek gold deposit in North Central Nevada. Fire Creek is a compelling gold mining prospect that is located near power, transportation, mining infrastructure and several milling facilities. For more information on the mineral resource estimates, please refer to Klondex’s disclosure available at the http://klondexmines.us2.list-manage2.com/track/click?u=29546d733027e4548f882e24c&id=ec493a9531&e=0682d10d06" href="http://klondexmines.us2.list-manage2.com/track/click?u=29546d733027e4548f882e24c&id=ec493a9531&e=0682d10d06">SEDAR website.