A second discovery sitting 1km from Sovereign reshapes how investors should value the 1.2Moz hub
Gorilla Gold Mines (ASX:GG8) has dropped another set of growth drilling results from its North Kalgoorlie Hub, and the headline numbers do the talking. The Sovereign deposit at Comet Vale delivered 1.2m at 31.5g/t Au from just 69m depth, alongside 7.6m at 5.1g/t from 251m and 2m at 9.6g/t from 40m. These are the kind of intercepts that quietly push a resource model.
But the more interesting story sits a kilometre west. Initial scout drilling at the newly identified Lady Margaret prospect returned 2m at 5.9g/t Au from just 18m down. Shallow, open in every direction, and sitting on ground that produced the highest grades in the district more than a century ago.
The hub now stands at 1.2Moz at 3.7g/t Au, with Sovereign alone holding 410,000oz at 4.3g/t over 1.3km of strike. Management added more than 1Moz to the hub during 2025, and the 2026 program is the biggest in company history. The question for investors is no longer whether the resource grows. It is by how much, and how fast that translates into a development pathway.
Sovereign keeps extending and the lode geometry is starting to make sense
The Sovereign intercepts released this week land both within and outside the current resource envelope, which is what growth drilling is meant to do. The 7.6m at 5.1g/t in STEX189 came from over 250m depth, telling us the high-grade system has real vertical persistence.
Management is describing multiple parallel lodes forming along a mafic to ultramafic contact, which is classic orogenic gold geometry. When you find one lode at this kind of grade, finding the next one parallel to it usually becomes a question of where you point the rig.
That matters because the resource currently sits at 410,000oz at 4.3g/t over 1.3km of strike. If parallel lodes get systematically tested at depth and along strike, the next resource update later this year has a credible path to a material step up.
Lady Margaret is the option investors are not yet paying for
Lady Margaret was the original discovery in the Comet Vale area in the late 1890s and was the highest grade producer in the district. Scout drilling just hit 5.9g/t from 18m, and the prospect remains wide open with more holes already at the lab.
Our take is that the market will fairly price the Sovereign growth story, because growth drilling at a known deposit is incremental in nature. A genuinely new shallow discovery sitting a kilometre from infrastructure is a different category of optionality.
We would want to see follow up holes confirm continuity before getting carried away. But the combination of historical production, shallow mineralisation and a 10km by 3km structural corridor that has barely been drilled is exactly the kind of setup that re-rates explorers when the next batch of assays lands.
Four rigs turning and a development pathway starting to form
Gorilla has four drill rigs active at Comet Vale plus a separate program underway at Vivien, which itself holds 278,000oz at 4.1g/t. Two RC rigs are chasing the recent Donkey Kong, Diddy Kong and Magilla discoveries, while diamond drilling tests footwall lodes and southern extents at Sovereign.
Assay turnaround is running slower than usual due to industry wide lab demand, which is worth flagging because results flow will be lumpy through the second half. Definition work covering engineering, geotechnical, metallurgical and hydrological studies is running in parallel, with permitting now active.
The skeptical read is that pre-development explorers chew through cash quickly and the development decision will eventually require capital. The constructive read is that with milling infrastructure within 100km and granted mining leases already in place, the path from resource to revenue is shorter than most explorers can claim.
The Investors Takeaway for Gorilla Gold Mines
The 2026 program is shaping into a meaningful inflection for Gorilla. Sovereign is adding ounces at high grade, Lady Margaret has opened a new target less than a kilometre from existing infrastructure, and the broader hub still has more than 60km of priority targets untested.
Investors watching this name should track three things over the next two quarters. Sovereign depth extensions, Lady Margaret follow up assays, and any commentary on milling arrangements with one of the operating plants within trucking distance. Investors can find more in-depth coverage of ASX-listed gold explorers at stocksdownunder.
