ATAC Resources Ltd.

ATAC Resources Ltd.

September 30, 2010 08:30 ET

ATAC Resources Ltd. Updates Tiger Zone Drilling at its Rau Gold Project-Yukon

VANCOUVER, BRITISH COLUMBIA--(Marketwire - Sept. 30, 2010) - ATAC Resources Ltd. (TSX VENTURE:ATC) is pleased to announce additional results from diamond drilling at the Tiger Zone at its wholly owned 1500 sq/km Rau Gold Project in central Yukon. Recent drilling has tested three key areas which include the northwest extension of the high-grade oxide mineralization discovered in 2009, infill drilling and the East Zone.

The new Osiris discovery area drill results will be released when received.

The northwest extension drilling has successfully expanded the Tiger Zone oxide mineralization downdip within the mineralized favourable dolomite unit, where late stage fluids focused by northerly trending faulting have apparently enhanced the gold grade and caused complete oxidation of mineralization to depths greater than 300 m from surface.

Northwest Oxide Extension

Intersections in Holes Rau-10-101, 105 and 108 represent step-out downdip intersections of 35, 40 and 25 metres, respectively, beyond previously defined limits of the Tiger Zone oxide mineralization at the northwest end of the deposit. Assays are pending for an additional six step-out drill holes. Significant northwest oxide extension intersections are tabulated below.

Hole ID Section East North Dip From (m) To (m) Int. (m) Au Grade(g/t) Zone
Rau-10-101 10+350NW 528455 7119467 -65 223.38 256.34 32.96 1.02 Oxide
        incl 240.18 250.90 10.72 2.15 Oxide
Rau-10-105 10+350NW 528455 7119467 -78 210.92 225.27 14.35 5.06 Oxide
Rau-10-108 10+250NW 528465 7119344 -60 87.78 118.73 30.95 3.80 Oxide
        incl 95.40 115.68 20.28 5.67 Oxide

Tiger Zone Infill

Infill drilling within the presently defined limits of the Tiger Zone is also being carried out to provide assay data where previous intersections were relatively widely spaced and to provide access in lined holes for down-hole gravity surveys for oxide density measurements. This data will enable a reliable estimation of the gold resource, especially in the oxide zone where specific gravity determinations on core samples have been difficult to obtain through conventional techniques. Intersections in infill holes Rau-10-96, 10-102 and 10-104 are within expected ranges, based on previous results from surrounding drill holes. Infill drilling will continue with two drills with expected completion in early October. Significant Tiger Zone infill results are tabulated below.

Hole ID Section East North Dip From (m) To (m) Int. (m) Au Grade(g/t) Zone
Rau-10-96 10+030NW 528512 7119015 -62 4.57 68.58 64.01 2.78 Mixed
        incl 4.57 43.56 38.99 4.01 Oxide
Rau-10-102 10+250NW 528420 7119305 -63 45.11 122.83 77.72 1.26 Oxide
        incl 89.31 119.79 30.48 2.00 Oxide
Rau-10-104 10+160NW 528474 7119233 -60 42.06 48.16 6.10 0.68 Oxide

East Zone and Tiger Zone Sulphide Intersections

The East Zone area lies to the southeast of the Tiger Zone. It is a lower stratigraphic level of mineralization that may be the down-dropped equivalent of the Tiger Zone, across a north-trending fault. Intersections in holes shown in the table below demonstrate continuity over a 100 metre strike length in conjunction with previously released East Zone assay results. The Upper Tiger Zone is a recently discovered area of stratabound mineralization that lies about 150 m stratigraphically above the East Zone.

Rau-10-100 and Rau-10-103 were drilled on section 10+040NW to test the downdip portion of the sulphide system at the northeast edge of the deposit toward the north-trending fault that separates the Tiger Zone from the East Zone. The better grade intersection in Hole Rau-10-103, downdip of Hole Rau 10-100, and closer to the fault, supports the exploration model that better grade parts of the deposit occur along northerly trending structures. Significant East Zone, Tiger Zone and Upper Tiger Zone results are tabulated below.

Hole ID Section East North Dip From (m) To (m) Int. (m) Au Grade(g/t) Zone
Rau-10-89 9+800NW 528709 7118969 -59 103.30 106.68 3.38 1.52 Upper
Rau-10-91 9+800NW 528709 7118969 -45 99.65 109.12 9.47 0.91 Upper
Rau-10-93 9+750NW 528782 7118966 -65 371.86 374.31 2.45 1.72 East
Rau-10-95 9+750NW 528782 7118966 -60 219.77 221.45 1.68 8.21 Upper
Rau-10-98 9+750NW 528782 7118966 -58 215.68 218.00 2.32 2.66 Upper
          378.13 380.10 1.97 3.74 East
Rau-10-100 10+040NW 528572 7119172 -50 162.00 169.61 7.61 2.35 Tiger
Rau-10-103 10+040NW 528572 7119172 -63 85.34 94.45 9.11 1.05 Upper
          149.02 164.00 14.98 2.38 Tiger

All drill holes in this release can be viewed in cross-sectional and 3-D views at Corebox, a link is also available on ATAC's website.

All intervals shown in this release are mineralized lengths of core that cut across bedding but fold geometry is not well enough understood to reliably calculate true widths. Based on core axis to bedding angles, true widths are estimated to be 70 to 90% of the interval lengths.

Gold determinations were carried out at ALS Chemex in North Vancouver, B.C. where samples were fine crushed before a 250 gram split was pulverized to better than 85% passing 75 microns. The pulverizing circuit was cleaned with quartz sand twice between samples. Splits of the pulverized fraction were routinely dissolved in aqua regia and analyzed for 49 elements using inductively coupled plasma (ICP) together with mass spectrometry (MS) or atomic emission spectroscopy (AES). Gold analyses were by the Au-AA26 procedure that involves fire assay preparation using a 50 gram charge with an atomic absorption spectroscopy finish.

Rigorous procedures are in place regarding sample collection, chain of custody and data entry. Certified assay standards, duplicate samples and blanks are routinely inserted into the sample stream to ensure integrity of the assay process.

The technical information in this news release has been reviewed by Robert C. Carne, M.Sc., P.Geo., a qualified person for the purposes of National Instrument 43-101.

ATAC is a well funded junior mining company focused on precious metals. For additional information concerning ATAC Resources Ltd. or its various exploration projects please visit ATAC's website at

On behalf of the Board,

Graham Downs, CEO

This news release may contain forward looking statements based on assumptions and judgments of management regarding future events or results that may prove to be inaccurate as a result of exploration and other risk factors.

Neither the TSX Venture Exchange nor its Regulation Services Provider (as that term is defined in the policies of the TSX Venture Exchange) accepts responsibility for the adequacy or accuracy of this release.

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