Black Cat Trojan gold footprint: design and scheduling notes for mine planners
Reviewed by Tom Sullivan

First reported on Australian Mining
30 Second Briefing
Black Cat Syndicate has extended the mineralised footprint of its Trojan gold deposit in Western Australia, with a 56‑hole reverse‑circulation programme totalling 6804m intersecting gold beyond the current resource boundary in zones earmarked for early mine development. Drilling targeted down‑dip extensions to steeply dipping lodes in the northern sector and shallow, flat‑lying mineralisation, indicating potential for both underground and near‑surface extraction options. The results point to resource growth opportunities that could influence pit shell design, decline positioning and early production scheduling at Trojan.
Technical Brief
- Hole spacing and metreage suggest tight definition around planned early-stage development areas.
- Steeply dipping lodes in the northern sector imply potential for conventional longhole stoping geometries.
- Shallow, flat-lying mineralisation geometry is compatible with selective open-pit or shallow underground room-and-pillar.
- Intersections beyond the current resource boundary will likely require updated geotechnical domains and slope design inputs.
- New data will refine pit shell optimisation, particularly waste:ore ratios and cut-back sequencing.
- Down-dip extensions inform preliminary decline gradient, orientation and ventilation raise positioning for Trojan.
Our Take
Trojan adds to a crowded Western Australian gold pipeline in our database, where Black Cat Syndicate already features with the Coyote, Kal East and Paulsens/Lynx assets, signalling a deliberate multi‑asset growth strategy rather than a single‑mine focus.
The 6,804m reverse‑circulation programme at the Trojan gold deposit is modest compared with Black Cat’s planned 35,000m campaign at Coyote, suggesting Trojan is currently being tested as a near‑term satellite or resource extension rather than a flagship target.
With Macmahon Holdings already embedded at Black Cat’s Majestic gold mine, any future development at Trojan in Western Australia could potentially leverage existing contractor relationships and underground expertise, shortening ramp‑up timelines if economics stack up.
Prepared by collating external sources, AI-assisted tools, and Geomechanics.io’s proprietary mining database, then reviewed for technical accuracy & edited by our geotechnical team.
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