Klondex In-Fill Drilling Encounters 201 g/t (6.5 opt) Gold Across 2.6 Meters (8.5 Feet); Confirms Continuity of Main Zone Veins at Fire Creek, Nevada

In-Fill Drill Program Adding Data to the Resource Estimate Update

ELKO, NV and VANCOUVER, BC--(Marketwire - Mar 7, 2013) - Klondex Mines Ltd. (TSX: KDX) (OTCQX: KLNDF) today reported encouraging results from its 2013 underground in-fill drill program at its Fire Creek gold project in Lander County, Nevada. The drilling program is designed to demonstrate the Main Zone's continuity for inclusion in the updated resource estimate and to provide additional data to guide initial bulk sampling.

The first two holes drilled in 2013 encountered significant gold mineralization demonstrating further continuity of the Main Zone's A- and B-Veins between the 5370 and 5400 crosscuts. Two additional holes have been completed with assays pending.

Mike Doolin, General Manager of Fire Creek commented, "Our in-fill drilling program is off to a very positive start. We are getting a clearer picture of where the veins are located between the crosscuts. The two drill holes successfully intercepted both the A- and B-Veins.

"Not only are we encouraged by the continuity of both the A- and B-Veins, but also by the multi-ounce gold grades encountered in several intercepts. The rock is competent, the drilling program is progressing well, and we are excited to see additional data from this program."

Total

True

Gold

Gold

Depth

From

To

Interval

Thickness

Grade

Grade

Hole ID

Inclination

(m)

(m)

(m)

(m)

(m)

(g/t)

(oz/t)

FC13-059U

40

75.3

8.2

9.8

1.5

1.2

5.5

0.2

and

"

"

13.8

14.5

0.8

0.9

4.7

0.2

and

"

"

69.2

70.7

1.5

0.8

10.8

0.3

FC13-061U

-26

121.3

14.1

14.7

0.6

0.6

14.2

0.5

and

"

"

39.3

41.9

2.6

2.6

210.0

6.8

including

"

"

39.3

39.8

0.5

0.4

915.0

29.4

including

"

"

39.8

40.2

0.4

0.4

57.1

1.8

including

"

"

40.2

41.9

1.7

1.7

59.4

1.9

Table 1: Drill hole intercepts from Drill Fan 9.

Samples cited in this news release were obtained from in-fill drilling by independent contractor American Drilling under the direction of Klondex staff. Assays were determined by ALS Minerals in Reno Nevada, an independent analytical laboratory. Klondex is not yet able to determine true widths in certain areas.

The content of this press release has been reviewed by Steven L. McMillin, CPG-11031 (American Inst. of Prof. Geol.), Chief Geologist for Klondex Mines Ltd., as a non-independent Qualified Person for the purposes of National Instrument 43-101.

About Klondex Mines Ltd. (www.klondexmines.com)
Klondex Mines is focused on the exploration and development of its Fire Creek gold deposit in North Central Nevada. Fire Creek is a compelling gold mining prospect located in a region of prolific gold production that is near power, transportation, mining infrastructure and several milling facilities. As of March 1, 2013 Klondex had 64.4 million shares issued and outstanding, and 84.9 million shares on a fully-diluted basis.

This news release contains forward-looking statements, including about current expectations on the timing and success of exploration activities, project development and related permitting. These forward-looking statements entail various risks and uncertainties, are based on current expectations, are subject to a number of uncertainties and risks, and actual results may differ materially from those contained in such statements. These uncertainties and risks include, but are not limited to, the strength of the global economy; the price of gold; operational, funding and liquidity risks; the degree to which mineral resource estimates are reflective of actual mineral resources; the degree to which factors which would make a mineral deposit commercially viable are present; the risks and hazards associated with underground operations. Risks and uncertainties about the Company's business are more fully discussed in the Company's disclosure materials filed with the securities regulatory authorities in Canada and available at www.sedar.com. Readers are urged to read these materials. Klondex assumes no obligation to update any forward-looking statement or to update the reasons why actual results could differ from such statements unless required by law.

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