Almaden Mineral's Newsroom

 

News Release: February 20th, 2003

Drilling intersects High-grade Gold at the Siwash Mine, B.C.

In September, 2002 a sixteen hole, 5,000 m (meter) diamond drill program was carried out to test the continuity of mineralisation at the company's wholly owned Siwash Gold Mine. The deposit is located roughly two kilometres south of Highway 97 and 45 kilometers (km) southeast of Merrit in the Okanagan area of Southern British Columbia. The mine is known for its very high gold grades and in the 1990's, 51,750 ounces of gold were produced from 18,400 tons of mesothermal quartz vein ore extracted from the B vein system in open pit and underground operations. The Siwash Mine presently has an indicated resource of 87,700 oz (2,727,400 grams) gold in 61,300 tons and a probable reserve of 45,200 oz (1,405,700 gm) gold in 44,500 tons for a total of 141,962 ounces in 123,142 tons as calculated on completion of the last drill program in 2000. Calculation of an updated resource estimate incorporating the 2002 drill intersections is underway. Several structures were tested in the program, including the WD vein, the Deep B shoot, the Gold Creek West vein and the Bullion Creek structure.

The continuity of the WD vein, located 200 m north of the B vein system, was tested in fifty metre step-outs to the south and east of previous drill perimeter. All holes intersected the vein near the projected depth and will result in an increase of the resource. Hole 311, the deepest hole drilled on the structure, returned 0.567 oz/t (troy ounces per short ton) gold over a true width interval of 2.15 m indicating good continuity of the structure and mineralization to depth. The WD structure has been traced along strike for a length of 525 m and down dip for 320 m. It remains open to the east, west and down dip.

Two holes were drilled into the Bullion Creek structure, located 700 m north of the B vein, to test a zone of hydrothermal alteration not known previously to be associated with significant gold. Strongly altered granodiorite was intersected in both holes and narrow pyritic quartz veins returned an assay of 0.246 oz/t gold over a true width of 0.50 m. The presence of gold mineralization in Bullion Creek zone establishes good potential for other high-grade shoots and is considered a priority exploration target.

The Gold Creek West vein, 400 m southwest of the mine site, was tested by a total of nine drill holes in 1996 and 2000 and shows continuity of structure and mineralization over a strike length of 190 m. Four holes drilled this season intersected the vein at the projected locations and have extended its continuity a further 100 m to the west. No significant results were returned from the 2002 drilling.

The Deep B shoot on the B vein system is located immediately below the existing mine workings and can be accessed by extending the existing decline approximately 600 m. It contains an inferred resource of 35,600 oz Au in 12,200 tons grading 2.925 oz/t. The 2002 in fill drilling decreased the drill intersection spacing to approximately 30 m and tested the perimeter of the known shoot. Results confirmed the grade of the shoot internally but did not extend the high grade zone beyond its previously defined limits.

A possible extension to the B and WD vein systems was found roughly two km along strike to the east, on the other side of an area of overburden cover and no outcrop, as part of a trenching program in 2001. Grab samples of the vein material taken at surface returned averaged analyses of 0.922 oz/ton (31.6 grams/tonne) gold and 3.04 oz/ton silver (104.4 grams/tonne). A 0.5 by 0.5 m panel sample of the same vein taken in the wall of the trench returned 0.635 oz/ton gold (21.8 grams/tonne) and 0.96 oz/ton (32.9 grams/tonne) silver. This discovery was extremely significant as it adds two kilometres of prospective, unexplored strike length to the high-grade vein system.

All samples were analyzed at Acme Analytical Labs in Vancouver using wet geochemical, fire assay and metallics techniques. Duplicate and blank samples were included in the sample shipments sent to Acme and confirmed procedural quality. Check assays were carried out by ALS Chemex Labs in Vancouver. The qualified person and supervisor of the 2002 exploration drill program was Wojtek Jakubowski, P.Geo.

Elk Table

Mesothermal vein systems have been abundant producers of gold in many types of host rock and throughout much of geological time. About 130 miles northwest of the Siwash vein system, the Bralorne Pioneer mesothermal vein system produced approximately 4.3 million ounces of gold at an average grade of 0.48 ounces of gold per ton. Mesothermal veins have great depth potential with the
Bralorne Pioneer having been mined to over 1.5 km below surface. The deepest hole on the Siwash vein system is 320 metres down dip from surface.

The potential of the project encouraged Almaden to take advantage of an opportunity to buy a second hand mill for a low price. No feasibility study has yet been done and local permitting would be required to install the mill. Management will be considering its options for further development at Siwash in the coming months.

Elk Map

ON BEHALF OF THE BOARD OF DIRECTORS

Duane Poliquin
, Director

The Toronto Stock Exchange has not reviewed nor accepted responsibility for the adequacy or accuracy of the contents of this news release which has been prepared by management. Statements contained in this news release that are not historical facts are forward looking statements as that term is defined in the private securities litigation reform act of 1995. Such forward -looking statements are subject to risks and uncertainties which could cause actual results to differ materially from estimated results. Such risks and uncertainties are detailed in the Company's filing with the Securities and Exchange Commission.

Almaden Minerals