Klondex Announces Expanded 2011 Surface Exploration Program at its High Grade Nevada Gold Project, Fire Creek

Klondex Mines Ltd. (TSX: KDX) is pleased to announce its greatly
expanded surface drill program for 2011. This follows 2010 which was a
very successful year for exploration at Klondex. The discovery of new
veins and areas of mineralization outside our resource encouraged
Klondex to increase the area of exploration and the depth and quantity
of areas tested. Drilling is expected to commence as soon as conditions
allow drill rigs to reach the site.

Blane Wilson, President and COO commented; 'We felt it was important to
expand our drill program and get as much data assembled prior to our new
43-101 expected in Q4 of this year. As you may be aware, our resource
calculation does not include any data from the 2009 or 2010 exploration
drill programs. We are eager to update and maximize the return delivered
by that revised 43-101 to shareholders.?

This exploration program will include the following:

• 
  Core drilling of new veins intersected in 2010
  
• 
  Step out and in-fill RC drilling of additional untested IP anomalies
  
• 
  Directional drilling of possible deep extensions of the known vein
  system beneath Main
  
• 
  Step out drilling on the southern extension of the high grade Main zone
  
• 
  In-fill and resource expansion drilling
  

The 2011 surface exploration program builds upon the highly productive
2009 and 2010 programs and will include approximately 36,000 feet
(11,000 meters) of core and 23,000 feet (7,000 meters) of RC. The focus
of the 2011 program will be the following initiatives:

In-Fill and Resource Expansion Drilling

Core drilling will continue to in-fill the Main, Far North and New North
zones with 50 meter spaced holes. Current drill spacing is 100 meters in
some areas and new 50 meter intercepts will help Klondex design the
upcoming underground drilling and bulk sampling program. Drilling of
possible extensions of the resource, as done with drill holes FC1013 and
FC1016 at the south end of Main, is also planned in 2011.

Follow-Up Core Drilling of New Veins

New veins intersected by RC drilling of IP anomalies will be followed up
with core drilling to determine their extent. Current targets include
two new intersections south of Far North and one located east of Main.

Directional Drilling of Possible Deep Extensions

The veins at Fire Creek are primarily hosted by high-angle faults in
brittle mafic rocks. The bottom of the veins often correlates with the
occurrence of a water-lain tuff that does not normally allow vein
formation. However, additional brittle rocks that should be good vein
hosts occur at depth. By using directional drilling, which allows
near-vertical holes to be turned nearly horizontal, Klondex will test
for possible extensions of the Main resource veins. This will be the
first targeting of deeper mineralization done at Fire Creek.

RC Drilling of Additional Untested IP Anomalies

Drill testing of IP anomalies identified by major Klondex geophysical
surveys conducted from 2006 through 2009 has identified three new veins
to date. A total of ten anomalies have not been drill tested. These
anomalies will all be tested in 2011 along with additional drilling of
anomalies where gold-bearing structures were identified, but no ore
grade values (+5.0 g/t gold) were intersected to date.

As of April 11, 2011, Klondex Mines had approximately 36.6 million
shares issued and outstanding, approximately 43.2 million shares on a
diluted basis, and approximately CDN $14.5 million in cash and an
additional $10 million available on demand.

About Klondex Mines (www.klondexmines.com):

Klondex Mines Ltd. is focused on the exploration and development of its
100% owned high-grade Fire Creek gold deposit in North Central Nevada.
Fire Creek is a compelling, low-Capex mining prospect that is well
located near power, transportation, mining infrastructure and several
milling facilities. Klondex has identified the following NI 43-101
compliant resource at Fire Creek:

Richard Kern (P.Geo), of Reno, Nevada, a qualified person as defined
under National Instrument 43-101, has reviewed and approved the
technical information contained in this press release.

Investor:

Klondex Mines Ltd.

Bryson Goodwin,
604-341-1531

brysongoodwin@shaw.ca

or

Jaffoni
& Collins

David Collins, 212-835-8500

KDX@jcir.com