Silver Cloud Project Metallic Screen Gold Determinations

VANCOUVER - Blackrock Silver Corp. reported the results of metallic screen gold determinations on the Silver Cloud project situated 20 kilometers south of the Midas mine and 3 kilometers west of Hollister mine located along the prolific high-grade Northern Nevada Rift, in north-central Nevada.

A metallic-screen gold assay completed on the high-grade intercept (1.5 meters) in SBC22-020 at Northwest Canyon returned 70 g/t gold (calculated), 33% higher than the original assay of 52.62 g/t gold. The +150 fraction returned 60.257ppm Au, while the average of the two -150 fractions returned 71.420ppm Au. The variability of gold in the intercept indicates the gold is not evenly distributed within the vein.

Bonanza grades originally reported from SBC22-020 intersected 52.62 g/t gold (1.53 opt) and 606 g/t silver (17.68 opt) over 1.5 meters, representing a new high-grade vein discovery. The bonanza grades are associated with a banded quartz vein containing black sulphides, and the 606 g/t silver is the highest-grade silver intercept at Silver Cloud to date.

Metallic-screen analysis is used when coarse or nuggety gold is suspected, especially in high-grade gold values such as SBC22-020. A larger 1,000 gram sample is split from the original sample reject material and pulverized to approximately 200 mesh. The pulverization process tends to "flatten" malleable metallic minerals such as gold. The sample is then screen sieved and two fractions are created - a plus 150 mesh (coarse material) and a minus 150 mesh (fine material). Coarse gold will report to the coarse fraction. Each fraction is analyzed by fire assay and a combined weighted averaged determination is calculated for each gold value.

In the case of SBC22-020, most of the gold reported to the fine fraction indicating the gold is not coarse or nuggety. The 33 percent variation between the original assay determination and the metallic-screen analysis indicates the gold is not evenly disseminated and a larger sample may be required for future assays.

Discovery drillhole SBC22-020 targeted the projection of the NNW structure encountered in the Company's 2019 drillhole (SBC19-002: 8.32 g/t gold over 1.52m) and Placer Dome's 2002 drillhole (SCP-15: 5.61 g/t gold over 12.2m) and was drilled to 464 Meters (1523 ft). SBC22-020's collar is a 366 meter step out from SBC19-002 (collar to collar) to the SSE along the interpreted structure. The assay intercepts are separated by 425 meters. Selected intervals were analyzed for metallic-screen gold in drillholes SBC22-019 and SBC22-021.

Andrew Pollard, President and CEO, said, "These metallic-screen assays confirm our high-grade gold intercept at Northwest Canyon and returned a gold value 33% higher than the original gold assay. We are very excited by this new, multi-ounce discovery, which ties together drill-defined mineralization across 425 meters, supporting the orientation and mineralization of the vein at Northwest Canyon is more like that characterized at the Midas mine than the Hollister mine that is adjacent to our property. In addition, metallic-screen analyses of an interval, drilled near the historic Silver Cloud mercury mine, starting at 391.4 to 391.7 meters in SBC22-021, returned coarse gold, reading 26.27 g/t Au in the +150 fraction, indicating the possibility of another high-grade gold vein.

At more than 45 square kilometers, Silver Cloud is an incredibly large, target-rich project that has seen very little drilling despite the fact that it lies along a well known, high-grade gold trend. Home to some of the largest past producing mercury mines in America, with extensive epithermal alteration, Silver Cloud represents one of the largest under-explored volcanic hosted gold and silver epithermal districts in Nevada, and we control all of it."