Bralorne Gold Mines Ltd. - BK Zone

ZONE MODEL - Two sections of ore grade material, viable for mining blocks, have been intersected within the 640 feet of drifting completed to date along the structure known as the BK zone. This 640 feet represents approximately 1/3 of the distance (See news release: Jan 7, 2008) of the 800 level BK drift.

The first section, starting at 300 feet from the crosscut and running for a length of 184 feet, has an average width of 5.45 feet (using historical minimum mining width of 4 feet) with a weighted average grade of 0.842 oz/ton Au. The vein structure itself varied from 0.5 to 9 feet in width; averaging 4.09 feet at a weighted grade of 1.21 oz/ton Au.

This is followed by 37.5 feet of low grade material, 0.019 oz/ton across 4 feet before the second zone with a length of 81 feet and using a minimum 4 foot mining width, which gives a weighted cut grade of 0.525 oz/ton Au. (3 of the 10 faces sampled returned assays of: 4.425 oz/t across 1.4 feet; 9.959 oz/t across 2.3 feet; and 13.259 oz/ton across 1.4 feet. These values were cut to 2.916 oz/ton across respective vein widths for the cut grade calculation. The uncut grade is 1.283oz/ton.)

Visible gold was noted in several faces bringing nugget effect into play. Assays are being conducted at the Company's on-site lab utilizing conventional fire assay techniques on 30 gram samples. Both the pulp and reject portions of a number of samples have been sent to Eco Tech Labs in Kamloops for confirmation and comparison of results.

EXTRACTION DRIFT - 280 feet of the extraction drift has been complete on the BK extraction drift during February 2010 and also the draw points No.1 thru No.4. Draw points No. 5 thru No.12 consist of another 360 feet of developments to be completed. When the extraction drift and draw points are done the crews will be ready to start stoping the ore zone. Upon completion the crews will begin to stockpile our target of 30,000 tons of ore to have a year worth of production ahead of us.

STOCK PILING - Stoping commenced in April on the BK vein to extract the zone explored earlier this year by raise development. Following completion of an extraction drift and draw points, shrinkage stoping was initiated on April 15 and the first lift was completed on April 30. Preliminary results from the on-site laboratory for 39 assay traverses spaced at 2.4 m over 97 meters of strike length show the grade of the vein ranges from 1.1 to 266.5 g/T Au (0.032 to 7.77 oz/ton) with an average un-cut grade of 34.6 g/T Au (1.008 oz/ton) over a true width of 0.7 meters (2.4 feet). The average cut grade of the vein is 30.9 g/T Au (0.902 oz/ton) using the historic empirical cutting procedure (> 3.0 oz/ton cut to 3.0 oz/ton). The average (cut) grade of the lift estimated from the chip samples is 18.0 g/T Au (0.524 oz/ton) over an average mining width of 1.5 meters (4.8 feet). This first lift is estimated to have broken approximately 1400 short tons of ore grade material. Approximately 25% of this material or the "swell", which corresponds to the expanded volume of material after blasting, will be extracted and stockpiled on surface before the next lift is taken. The stope walls are competent, with spit sets being installed routinely for ground support. Overall, the results confirm the grade, continuity, and ground conditions as estimated from the exploration drift and raise development.


		Overview Properties Technical Reports Developments BK Zone North Vein Assay Results Bralorne Mine History Photo Gallery				ZONE MODEL - Two sections of ore grade material, viable for mining blocks, have been intersected within the 640 feet of drifting completed to date along the structure known as the BK zone. This 640 feet represents approximately 1/3 of the distance (See news release: Jan 7, 2008) of the 800 level BK drift. The first section, starting at 300 feet from the crosscut and running for a length of 184 feet, has an average width of 5.45 feet (using historical minimum mining width of 4 feet) with a weighted average grade of 0.842 oz/ton Au. The vein structure itself varied from 0.5 to 9 feet in width; averaging 4.09 feet at a weighted grade of 1.21 oz/ton Au. This is followed by 37.5 feet of low grade material, 0.019 oz/ton across 4 feet before the second zone with a length of 81 feet and using a minimum 4 foot mining width, which gives a weighted cut grade of 0.525 oz/ton Au. (3 of the 10 faces sampled returned assays of: 4.425 oz/t across 1.4 feet; 9.959 oz/t across 2.3 feet; and 13.259 oz/ton across 1.4 feet. These values were cut to 2.916 oz/ton across respective vein widths for the cut grade calculation. The uncut grade is 1.283oz/ton.) Visible gold was noted in several faces bringing nugget effect into play. Assays are being conducted at the Company's on-site lab utilizing conventional fire assay techniques on 30 gram samples. Both the pulp and reject portions of a number of samples have been sent to Eco Tech Labs in Kamloops for confirmation and comparison of results. EXTRACTION DRIFT - 280 feet of the extraction drift has been complete on the BK extraction drift during February 2010 and also the draw points No.1 thru No.4. Draw points No. 5 thru No.12 consist of another 360 feet of developments to be completed. When the extraction drift and draw points are done the crews will be ready to start stoping the ore zone. Upon completion the crews will begin to stockpile our target of 30,000 tons of ore to have a year worth of production ahead of us. STOCK PILING - Stoping commenced in April on the BK vein to extract the zone explored earlier this year by raise development. Following completion of an extraction drift and draw points, shrinkage stoping was initiated on April 15 and the first lift was completed on April 30. Preliminary results from the on-site laboratory for 39 assay traverses spaced at 2.4 m over 97 meters of strike length show the grade of the vein ranges from 1.1 to 266.5 g/T Au (0.032 to 7.77 oz/ton) with an average un-cut grade of 34.6 g/T Au (1.008 oz/ton) over a true width of 0.7 meters (2.4 feet). The average cut grade of the vein is 30.9 g/T Au (0.902 oz/ton) using the historic empirical cutting procedure (> 3.0 oz/ton cut to 3.0 oz/ton). The average (cut) grade of the lift estimated from the chip samples is 18.0 g/T Au (0.524 oz/ton) over an average mining width of 1.5 meters (4.8 feet). This first lift is estimated to have broken approximately 1400 short tons of ore grade material. Approximately 25% of this material or the "swell", which corresponds to the expanded volume of material after blasting, will be extracted and stockpiled on surface before the next lift is taken. The stope walls are competent, with spit sets being installed routinely for ground support. Overall, the results confirm the grade, continuity, and ground conditions as estimated from the exploration drift and raise development.