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> 98/09/04 Market News Publishing Inc. No:
> 000002
>
> BLACK HAWK MINING INC ("BHK-T;BHKMF-L")
> - Drill Hole Results At El Limon Mine in Nicaragua
>
> C. Thomas Ogryzlo, President and Chief Executive Officer of Black Hawk Mining Inc. is pleased to announce drill hole results from an ongoing exploration program at its El Limon operation, consisting of open pit mines and an underground mine, in northwestern Nicaragua, Central America.
> Two new epithermal, gold-bearing, quartz veins were discovered by underground drilling designed to test the footwall area of the Limon Mine's Talavera underground operation. Since commencement of the program in May 1998, approximately 2,335 metres of diamond drilling in 16 holes have been completed towards evaluating these discoveries. The two gold-bearing structures have been designated Talavera Sur and FWII. Geological continuity in Talavera Sur is demonstrated by intersections in 16 underground drill holes, four of which also intersect FWII. The location of Talavera Sur is less than 100 metres south of the Limon Mine's Talavera underground operation. Its orientation is sub-parallel to the mine workings which will allow for relatively inexpensive development and utilization of the existing mine infrastructure and access. Preliminary interpretations of the strike length suggest a one kilometre long structure that contains zones of variable gold grades. High-grade gold intercepts in nine of the holes intersecting Talavera Sur form a coherent and continuous 100 metre long zone located between sections 11150E and 11250E and over a vertical height of 125 metres from the 135 level down to the 260 level. The high grade zone averages 3.9 metres true width and carries a weighted average grade of 16.9 grams per tonne of gold and 17.28 grams per tonne of silver. Interpretations suggest that this high
grade zone may be projected 200 metres to the northeast to connect
with the Talavera Este Footwall zone where similar high-grade reserves are already being mined. The high-grade portion of Talavera Sur is also open to depth below the 250 mine level. To the west, from section 11150E to 10975E, four drill holes encountered the Talavera Sur structure but with generally low gold values. West of section 10975E, re-interpretation of three other drill hole intercepts demonstrate the continuation of Talavera Sur for at least another 350 metres. These three drill hole intercepts contain 5.22 grams/tonne gold over 2.52 metres, 5.18 grams/tonne gold over 2.75 metres, and 19.85 grams/tonne gold over 1.4 metres of core length. Limited drilling of the FWII Vein demonstrates its presence over a 200 metre strike length, parallel to and located 35 to 55 metres south of Talavera Sur. Drill results for the 16 holes completed on these discoveries to date are summarized in the following table. No cutting has been applied to
the gold assays at this time, though a few very high assays may require cutting for resource estimation.
> //st
> Drill Hole Section From To Estim- Gold Silver
> Number Zone (metres) ated Grade
> True (grams/tonne)
> Width
> (metres)
> 2332 UG Tal. Sur 11012E 133.65 134.11 0.4 1.03 d.l.*
> FWII 178.76 183.23 4.3 4.07 5.57
> Unnamed 235.00 242.66 7.6 5.22 1.17
> 2336 UG Tal. Sur 11100E 140.25 143.73 3.4 0.59 1.68
> FWII 185.93 188.33 2.3 2.85 d.l
> 2339 UG Tal. Sur 11174E 59.73 63.26 3.1 17.84 59.50
> FWII 126.50 127.70 1.2 6.96 32.95
> 2341 UG Tal. Sur 11168E 121.92 132.47 3.1 11.83 5.44
> 2343 UG Tal. Sur 11172E 52.99 55.79 2.7 2.53 5.34
> 2346 UG Tal. Sur 11196E 62.41 68.21 4.9 6.75 5.93
> 2347 UG Tal. Sur 11140E 151.50 156.45 3.8 0.81 d.l.*
> 2349 UG Tal. Sur 11198E 83.16 91.72 5.5 35.39 25.82
> 2351 UG Tal. Sur 11255E 55.16 61.56 3.1 12.40 25.71
> 2352 UG Tal. Sur 11250E 36.13 40.16 2.3 3.22 3.30
> 2353 UG Tal. Sur 11250E 65.30 71.95 3.3 10.88 11.95
> 2355 UG Tal. Sur 11246E 100.48 133.60 5.6 23.99 11.61
> 2357 UG Tal. Sur 11140E 117.87 122.12 0.6 d.l.* 2.25
> 2359 UG Tal. Sur 11138E 167.24 177.13 3.0 8.62 4.71
> 2362 UG Tal. Sur 11172E 81.38 87.96 3.9 11.69 10.95
> 2364 UG Tal. Sur 11095E 145.08 150.49 5.2 d.l.* d.l.*
> FWII 186.23 189.17 2.9 5.48 0.45
> *d.l. = below the limit of detection
> //et
The Company's routine and ongoing check assay and quality control
program provides confirmation of the mine laboratory assay results
reported above. ACME Analytical Laboratories Ltd. of Vancouver, an external and independent Canadian laboratory, is used by the Company for check assaying. Core recovery of mineralized intersections is generally very good averaging above 90%. A resource estimate will be made once additional in-fill and extension drilling are completed. This requires the preparation of strategically placed, underground stations that will permit drilling at right angles to the strike and dip of the new veins at the deeper mine levels. The re-calculated resource will be disclosed in the normal year end resource calculation. Other drill programs within the Limon mining concession are actively detailing known resources for conversion to mineable reserves and testing selected exploration targets.
For further information and to obtain a copy of the schematic
plan and the longitudinal section please contact:
TEL: (604) 684-6463 David M. Jenkins, V.P., Exploration
TEL: (416) 363-2911
Ext. 276 C. Thomas Ogryzlo, President and CEO
______________________________________
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-0- (CMN) Sep/04/ 98 10:33
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