The 2,500-metre, 16-hole program aims to upgrade the gold resource to JORC 2012 standards and will take an estimated three to four weeks.
The drilling program is designed to intersect an interpreted high-grade ore shoot beneath the pit.
Following an updated JORC resource estimate, a decision will be made to commence a feasibility study to evaluate the opportunity of mining and toll treating to nearby processing mills.
Eureka was a historical gold mine
The Eureka Gold Project area includes the Eureka Open Pit previously mined by during 1985 and 1986 and areas along strike to the north containing the mine sequence stratigraphy.
In 2002, a drilling program was conducted which defined gold mineralisation considered economically accessible by way of a cut back of the existing pit.
Exploration potential is also demonstrated at depth below the existing open pit.
Tyranna also recently commenced reverse circulation (RC) drilling at its Campfire Bore Gold Prospect within its Jumbuck Gold Project in South Australia.
Notably, Campfire Bore is 40 kilometres north of the Challenger Gold Mine, which is owned by 20% joint venture partner in the Jumbuck project, WPG Resources Ltd (ASX:WPG).
The Campfire Bore drilling program will proceed with 2,000 metres of infill RC drilling.
The focus of this drilling campaign will be to complete infill drilling to upgrade the JORC status of Campfire Bore from the inferred to indicated category.