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Nord Precious Metals has extended the high-grade Robinson Zone at its Castle East silver project in Ontario's historic Cobalt-Gowganda camp with an intercept of 2,848 g/t silver over 6.65 metres, including 61,389 g/t — or 1,790.8 oz/ton — over 0.30 metres.
The intercept comes from hole CS-21-73W1, a directional wedge drilled from CS-21-73 and described by the company as a direct extension of the Robinson high-grade silver vein system. The vein intersected at 501.9 m downhole is 7 cm wide (true width). A second wedge, CS-21-73W2, intersected a 2.5-cm true-width vein at 496.9 m downhole. A third wedge, CS-21-73W3, designed to test the intersection of two distinct silver veins, hit mineralization roughly 25 m updip and southward of CS-21-73W1, extending the high-grade vein system both updip and along strike.
"Castle East continues to deliver significantly strong silver values in the style that defined this district, with high-grade silver over 0.30 metres inside a 6.65-metre mineralized envelope and critical minerals carried right alongside it," said president and CEO Frank J. Basa. "With Nord now holding title to all the area mining leases following the recent acquisition, we can test structures that previously sat in different hands." Basa also pointed to the new native-silver intercept in CS-21-73W3, which "shows the vein system carrying strong silver-cobalt mineralization further than we had previously drilled and confirms the structure remains open along strike. Every metre we drill feeds directly into our planned resource update and, in turn, a future production plan."
In hole CS-21-73W3, at 480.8 m downhole, the drill cut a 5-cm true-width vein consisting of native silver with a dendritic texture together with cobalt arsenide mineralization in a calcite matrix; the silver and cobalt are uniformly distributed within the vein, and fine native-silver stringers were also logged adjacent and perpendicular to it. Additional mineralized intervals between 465 m and 504 m carried carbonate veins with mostly cobalt arsenide mineralization at varying concentrations, while minor carbonate veins at 439.0 m and 504.35 m each carried silver alongside the cobalt. Assays from those intervals are pending.
The drilling falls within a 5,000-metre phase announced in May, part of a broader 30,000-metre program at the enlarged Castle-Gowganda property. The earlier Phase I, totalling roughly 3,500 metres, validated the structural model that Ronacher McKenzie Geoscience built from 75,000 metres of historical data, which had flagged as many as 29 discrete vein targets. The remaining holes in the current phase will continue to test those targets, and the company plans to provide further results as they become available.
Nord Precious Metals operates TTL Laboratories, which it describes as the only permitted high-grade milling facility in Ontario's historic Cobalt Camp. The company's broader portfolio in the Cobalt-Gowganda area includes the Siscoe-O'Brien, Castle and Millerett properties together with the Castle East discovery, where a historical NI 43-101 resource estimate effective May 28, 2020 stands as the project's most recent technical report; subsequent work is expected to feed into an updated estimate. Outside the camp, Nord holds a 35% interest in Coniagas Battery Metals, which controls critical-minerals properties in northern Quebec, and the 32-square-kilometre St. Denis-Sangster lithium project near Cochrane, Ontario.