Windarra Minerals Ltd.
TSX VENTURE : WRA

Windarra Minerals Ltd.

July 25, 2005 13:06 ET

Windarra Minerals Ltd.: Significant High-Grade Gold Veins Discovered In Outcrop, Pukaskwa Property

VANCOUVER, BRITISH COLUMBIA--(CCNMatthews - July 25, 2005) - Windarra Minerals Ltd. ("Windarra") (TSX VENTURE:WRA) announces the discovery of outcropping high-grade gold mineralization during its second-phase prospecting program on the Pukaskwa property near Wawa, Ontario. A total of four samples were collected from outcropping quartz-iron carbonate veins over a 6 meter length; the samples assayed 115.4, 25.3, 4.1 and 0.95 oz/ton Au (3955.1, 869.7, 141.4, and 32.5 g/t, respectively). A grab sample of wallrock to the vein also returned 5.2 oz/ton Au (178.0 g/t).

The vein was exposed in a hand trench dug in an effort to source coarse (0.75 m square) float boulders of high grade quartz vein material (12.2-62.0 oz/t Au) that was discovered in an area of deep overburden and thick vegetation in the late fall of 2004 (see Windarra News Release dated November 25, 2004). This discovery represents a new bedrock Au occurrence on the Pukaskwa property, and one of much higher grade than the many occurrences discovered on the property in the 1980's and 1990's.

The vein from which the high grades were obtained ranges from 5 to 20 cm thick and has been fully exposed along a strike length of approximately six metres. A number of nearby quartz vein float boulders containing visible Au were also discovered in the present program, with one 120 metres to the southwest yielding 0.82 oz/ton Au, and one 100 metres to the southeast yielding 0.55 oz/ton Au.

Together, the newly discovered vein occurrences represent a part of the property on which Windarra intends to focus its exploration. The area lies approximately 500 metres south of the western end of a km-long belt of Au occurrences known collectively as the Aaardvark West trend. The trend was one of a number of mineralized zones on the property that was explored in the 1980's and 1990's and it yielded significant intersections of Au mineralization in trenches and drillholes. The Aardvark West trend also returned many grab samples of vein mineralization with Au values in the 5-30 g/tonne range, and the trend is in part defined by anomalous Au-in-soil geochemistry. The latest high grade discoveries lie well within the Aardvark West soil anomaly, which is the most extensive soil geochemical anomaly on the Pukaskwa property (greater than 4 km long, up to 1 km across, as outlined by work in previous programs), and consequently it represents an extremely attractive and extensive exploration target. The Company intends to meet with its geologists and Stares Prospecting on the property in early August to determine the extent of an immediate exploration program.

The Pukaskwa property is located 50 kilometres west of Wawa, Ontario, less than 20 km northwest of River Gold Ltd.'s Eagle River Mine, which has produced approximately 600,000 ounces Au since 1995. It also lies less than 20 km west-southwest of the formerly producing Magnacon mine, and Magnacon joint venture property, in which Windarra and its 72% held subsidiary, Westward Explorations Ltd. hold an interest jointly with River Gold. The Pukaskwa property consists of 55 contiguous unpatented mining claims which follow the east-northeast to west-southwest trending Mishibishu deformation zone for more than 12 kilometres. The deformation zone hosts many vein Au occurrences and showings, including the Mishi and Magnacon deposits, and it transects much of the length of the Mishibishu greenstone belt, an east-west trending belt of greenschist to amphibolite grade Archean volcanic and associated sedimentary rocks that are considered to be the western equivalent of the prolific Abitibi greenstone belt, west of the Kapuskasing structural zone.

Gold within quartz veining contained within Archean age rocks was identified at the Pukaskwa property during exploration in the wake of the discovery of the Hemlo gold deposits in the early 1980's. The Hemlo deposits have produced approximately 20 million ounces Au since their discovery and are located 80 kilometers to the north at the Pukaskwa property. Geological age and structural and lithological characteristics at Hemlo are directly comparable to features observed at the Pukaskwa property.

Gold analyses for samples collected during this program were determined by Accurassay Laboratories of Thunder Bay, Ontario, via fire assay of a 30-gram sample with an atomic absorption finish. Duplicate analyses of seven samples with the highest grades yielded results within 3% of one another, and the assays were corroborated by check assays on sample pulps performed by Chemex Labs of Vancouver, B.C.

Windarra Minerals Ltd. can earn a 100% interest in the Pukaskwa Property from Messina Minerals Inc. by issuing 350,000 shares over a 30-month period and maintaining the property in good standing during the option period as well as a further 12 months should the Company elect to terminate the Agreement.

The field and analytical data described in this release has been reviewed and approved by C.J. Greig, P.Geo., a Qualified Person as defined by National Instrument 43-101.

On behalf of the Board of Windarra Minerals Ltd.

John Pallot, President


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