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HighGold reports best intersection drilled in JT assay results

Published by , Editorial Assistant
Global Mining Review,

HighGold Mining Inc. has announced assay results from four resource infill and expansion drill holes completed at the company’s 1.05 million oz indicated at 9.4 g/t gold equivalent (AuEq) JT Deposit (3.0 g/t AuEq cut-off grade) on the Johnson Tract project (JT) in Southcentral Alaska, USA. Drilling at the JT deposit focused on gaps between inferred resource domains and step-outs at depth. The company also completed one drill hole (JT22-152) oriented perpendicular to the existing drilling pattern and parallel to the long axis of the JT deposit, to test for vein orientations that may have been under-represented in previous drilling, and to also test for a potential bounding cross-fault.

Drill hole JT22-152 has delivered the best intersection drilled to date at the JT Deposit. The intersection demonstrates exceptional continuity of very high-grade mineralisation, with gold grades locally exceeding the resource block model that it intersects. The results from the other holes reported demonstrate potential additions to the mineral resource between the known inferred resources (holes JT22-148 and 149) and the continuation of the mineralising system at depth (hole JT22-150).


  • 120.5 m at 18.76 g/t Au, 0.55% Cu, 3.86% Zn, 0.93% Pb, 6 g/t Ag (22.1 g/t AuEq) in hole JT22-152, including:
    • 10.0 m at 39.79 g/t Au, 1.06% Cu, 17.02% Zn, 2.54% Pb, 18 g/t Ag (52.2 g/t AuEq).
    • 19.1 m at 43.87 g/t Au, 0.27% Cu, 2.20% Zn, 0.69% Pb, 6 g/t Ag (43.3 g/t AuEq). 
  • 13.5 m at 0.48% Cu, 1.26% Zn (1.56 g/t AuEq) in footwall copper zone, in hole JT22-152.
  • 9.3 m at 7.18 g/t Au, 0.22% Cu, 5.57% Zn (10.9 g/t AuEq), in hole JT22-148, including:
    • 6.6 m at 10.02 g/t Au, 0.29% Cu, 7.30% Zn (14.85 g/t AuEq).
  • 30.4 m at 0.48% Cu and 0.92% Zn (1.33 g/t AuEq) in footwall copper zone, in hole JT22-148.
  • 5.3 m at 0.65 g/t Au, 20 g/t Ag, 1.72% Cu, 0.57% Zn (3.2 g/t AuEq), in hole JT22-149.

President and CEO, Darwin Green, commented:

“The exceptional results of drill hole JT22-152 underscore the highly attractive combination of large intervals of high-grade mineralisation that characterise the JT deposit, which consists of a thick, oblate body of stockwork veining and breccia.”

“The area of the mineral deposit that was tested by this hole would be the first area accessed in a conceptual underground mining scenario involving horizontal ramp access from a valley floor audit. In addition to documenting higher grade gold, the northeast orientation of drill hole JT22-152 has also allowed HighGold to test – and confirm – that the southern edge of the JT Deposit is bounded by a cross-fault. This opens-up the potential for additional displaced mineralisation to continue further to the south than previously thought. We are also very pleased with the success of infill drilling of gaps in the mineral resource with drill holes that were designed to connect the main body of the mineral resource with isolated bodies of inferred resource located down-plunge.”

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