Resolution Minerals Ltd (ASX:RML, OTC:RLMLF) earlier this week released further assay results from its maiden drilling program at the Horse Heaven project in Idaho, confirming broad zones of gold mineralisation and outlining plans for an expanded 2026 campaign.
The company said the latest results came from six diamond holes totalling 1,600 metres of drilling at the Golden Gate target. The structure spans approximately 3 kilometres, and only 20% of its strike length has been tested.
Resolution confirmed that drilling had identified 600 metres of strike, 200 metres in width, and 300 metres in vertical extent, all mineralised. It said gold was hosted both within the primary fault and in the surrounding rocks, describing it as indicative of an intrusive-related gold system.
CEO Craig Lindsay told Proactive the results represent a strong start. He said the Golden Gate structure is geologically analogous to the nearby Stibnite gold project, which is being developed by Perpetua Resources.
Stibnite is expected to become a major U.S. gold producer and supplier of 30–35% of domestic antimony needs. Resolution noted that its Horse Heaven project lies directly adjacent and is already benefiting from Stibnite-related infrastructure upgrades, including a new access road and power transmission line that both cross its tenements.
The company said it completed 10 core holes during 2025, with results from four holes still pending. It also drilled three shallow RC holes. Under its current permit, an additional 45 drill holes are approved for 2026, with funding secured following recent capital raises.
Separately, Resolution said it is advancing work at the Antimony Ridge target, a past-producing mine. Samples collected from the site have been sent to a Canadian laboratory to produce military-grade antimony trisulfide.
The company said it has reported grades up to 50% antimony and is in discussions with the U.S. Department of Defense about potential funding to help meet strategic stockpile targets.
Resolution said its location, commodity mix, and funding position offer a strong platform for further progress in 2026.
Proactive:
Resolution Minerals has unveiled another strong set of assays from its maiden drilling program at the Horse Heaven gold-antimony-tungsten-silver project in Idaho. New diamond holes have returned broad near-surface gold mineralisation. Here to discuss the results and the project’s growth potential is CEO of USA operations, Craig Lindsay. Craig, good to see you.
Craig Lindsay:
Jonathan, fantastic to be with you today. I appreciate you taking the time.
Proactive:
Let’s talk about these results. But first, could you give us a quick background on the project?
Craig Lindsay:
Sure. Horse Heaven is in Idaho, and Resolution has 100% interest in the project. It spans 15,000 acres. For your viewers, the key point is that we’re located immediately next to Perpetua Resources’ Stibnite project, which is set to be the next big gold project in the United States.
It’s also expected to supply 30–35% of the U.S. antimony requirements. The key thing to note is that Horse Heaven is a direct geologic analogue to the Stibnite project — we’re just much earlier in our development timeline.
Proactive:
Continuous gold mineralisation — what does this suggest about the overall scale and growth potential?
Craig Lindsay:
It says a lot, actually. Over the past six weeks, we’ve reported six holes, totalling about 1,600 metres of drilling, all at the Golden Gate target. Golden Gate is approximately 3km long. At the south end, we’ve collected 4g/t gold in rock samples, and at the north end, we’ve seen up to 7g/t.
We’ve done geophysics, soils — all of which point to a continuous fault structure running the length of the target. From our current drilling, we’ve confirmed 600m of strike, about 200m wide, and 300m thick — all mineralised. We’re seeing high-grade intervals in the fault and a large disseminated halo in the host rock — typical of intrusive-related gold systems.
And that’s from just 20% of the target area — so we’re off to a fantastic start.
Proactive:
It’s worth repeating — this is just six holes. And you’ve got another 45 holes planned for 2026?
Craig Lindsay:
Yes. We actually drilled 10 core holes this year, so four more are still to be reported, likely in the next six to eight weeks — probably January. We also drilled three shallow RC holes.
We’ve got approval and funding to drill an additional 45 holes. The permits are in place, and that will allow us to test almost the full 3km strike length at Golden Gate. We’re well funded after our recent financings.
Proactive:
Tell us more about the Antimony Ridge target.
Craig Lindsay:
That’s an exciting part of the story. It’s a past-producing antimony mine. We did some surface sampling recently, and we’re excited about the results — which will be released soon.
We also collected around 60 kilograms of antimony and sent it to a lab in Canada to try to produce antimony trisulfide, a military-spec end product. So we’re actively testing the metallurgical potential there as well.
Proactive:
Let’s talk about infrastructure. You’re right next to Perpetua’s Stibnite project — how significant is that?
Craig Lindsay:
It’s very significant. Perpetua is building a new access road that cuts through the bottom of our project — so we’re gaining access at no cost. The transmission line that powers their site also crosses our property — and that’s being upgraded, again at no cost to us.
Perpetua is a nearly A$4 billion market cap company, so there’s a lot of attention on them — and we’re benefiting from that. Investors have started calling Horse Heaven “Stibnite 2.0.”
We’ve got a good relationship with them — we’re neighbours in a small community. We share infrastructure, even the water source. It’s important that we develop our project in a way that complements their activities.
Proactive:
And you mentioned potential government support?
Craig Lindsay:
Yes — Perpetua has received Department of Defense grant funding due to the antimony component. We’re also having conversations with the DoD about strategic funding. Our antimony grades are high — up to 50% — and occur right at surface in massive stibnite veins.
There’s a chance we can contribute to the U.S. strategic stockpile of antimony. With gold at US$2,200 and antimony also trading high — we’re in the right place, with the right commodities, at the right time.
Proactive:
Plenty going on and plenty to look forward to. Craig, we’ll be watching for those next results. Thanks for your time.
Craig Lindsay:
Thanks, Jonathan. Great to speak with you.