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Havieron publishes exploration and development update

Published by , Editorial Assistant
Global Mining Review,

Greatland Gold has provided an exploration and development update for Havieron, its flagship gold-copper project located in the Paterson Province of Western Australia (Newcrest Mining Ltd. is Greatland’s 70% joint venture partner in Havieron).


  • Decline development: significant progress continues to be made with total development now exceeding 1850 m including over 1520 m advance of the main access decline.
  • Geotechnical conditions: improved geotechnical conditions have enabled increased productivity resulting in development outperforming the current schedule by 10%.
  • Drilling results: drilling confirms the presence of high-grade gold and copper mineralisation outside the current Mineral Resource with recent results including:

- Northern Breccia: 29.9 m @ 3.9 g/t Au and 0.01% Cu from 945.1 m.

- Eastern Breccia: 57 m @ 2.1 g/t Au and 0.19% Cu from 1262 m.

Greatland Managing Director, Shaun Day, commented: “The Havieron team continues to deliver strong results at the project. Total development has now surpassed 1850 m and pleasingly, decline development is continuing ahead of the current schedule. Our most recent drilling activities highlight the potential of high grade mineralisation outside the Southeast Crescent which could add significant value to the mine plan at Havieron with additional gold and copper mineralisation intersected at the Northern and Eastern Breccia zones.”

Development Update

The main decline continues to progress ahead of the current schedule having surpassed 1520 m. Decline support excavations for ventilation, services and materials handling takes the total development to over 1850 m.

The total advance is 10% ahead of the current schedule due to improved geotechnical conditions and the ongoing focus on productivity improvements.

Drilling Update

Drilling activities at Havieron recommenced at the beginning of February 2023 with three drill rigs onsite and four holes completed for a total of 5 214 m. This most recent drilling takes the total drilling at the project to 331 holes for 293 878 m.

Drilling has targeted growth opportunities within the Havieron mineral system at the Eastern Breccia and Northern Breccia domains with step out drilling to investigate near mine geophysical targets ongoing. The focus has now shifted to the evaluation of the deeper portions of the existing Southeast Crescent Mineral Resource, with drillholes HAD133W10, HAD171 and HAD172 completed since the beginning of February 2023.

New assay results have been received for four new drill holes along with final assays for lower priority areas from three holes completed in late 2022. Of these results, one hole within the Northern Breccia and one within the Eastern Breccia returned significant assay intercepts in excess of 50-gram metres of gold (Au ppm x length metres).

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Australian mining news