Ontario; Expands Discovery Zone to 960 Metres in Length and to 330m Depth; Potential Silver Zone(s) Identified

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TORONTO, ONTARIO--(Marketwire - March 15, 2011) - The Directors of Probe Mines Limited (TSX VENTURE:PRB) (Probe) are pleased to announce that the Company has received assay results for diamond drill holes BL11-16 to BL11-24, and partial results for drill hole BL11-25, of a second phase drilling program currently underway on its Borden Lake gold project near Chapleau, Ontario. Nine of the ten holes successfully intersected the gold-mineralized horizon and have extended the zone an additional 400 metres along strike to the northwest of the discovery section and 130 metres to depth for a total strike length of 960 metres and a vertical depth of 330 metres. Only Hole BL11-21 failed to intersect the horizon being collared in a diabase dyke intruded within the gold zone. As the dykes in this area trend in the same direction as drilling, the hole was stopped and the drill moved further northwest along trend to avoid the dyke. Holes BL11-24 and BL11-25 were drilled to the northwest of BL11-21, away from the diabase, and successfully intersected the continuation of the gold mineralization. The Borden Lake zone remains open in all directions.


Holes BL11-16 to BL11-21 and BL11-24 and BL11-25 were drilled on 100 metre-spaced sections, with each section comprising two holes drilled at different angles to test the zone at vertical depths of approximately 150m and 200m, respectively. Holes BL11-22 and BL11-23 were drilled on two sections, 500 metres northwest and 200 metres northwest of the discovery section, and were designed to test the zone at approximately 300 metres vertical depth. Updated plan and section maps are available on the Company's website at http://www.probemines.com/">www.probemines.com.