Resolution Minerals (ASX: RML) has secured two diamond core drill rigs for a major Phase 2 drilling program targeting tungsten and gold mineralisation at Golden Gate within its Horse Heaven project in Idaho.
The first MP1500 rig is expected on site in coming days, with the second due to arrive in mid-May for a campaign of up to 13,700 metres across as many as 45 holes.
Drilling is scheduled to begin next week after Resolution reopened site access and re-established support infrastructure including camp facilities, water supply, water filtration equipment, and technical team mobilisation.
Golden Gate sits immediately beside Perpetua Resources’ recently permitted Stibnite gold-antimony project and forms part of Resolution’s broader Horse Heaven antimony-tungsten-gold-silver project.
Golden Gate Drilling Targets Scale
The program will look to define the scale and extent of gold mineralisation at Golden Gate North and Golden Gate South along strike and at depth.
A successful campaign would support work toward a maiden mineral resource estimate, which Resolution is targeting for the first quarter of 2027 subject to drilling outcomes.
Golden Gate North drilling will include infill and step-out holes aimed at expanding known gold mineralisation and testing extensions of the system.
The work follows previous results including 189.2m at 1.30 grams per tonne gold from 34.1m to 223.4m in one hole that ended in mineralisation.
Previous Gold Results Remain Open
Resolution’s 2025 Phase 1 campaign totalled 3,780m across 14 holes and intersected gold mineralisation from surface in every hole drilled at Golden Gate North and South.
The mineralisation remains open at depth, along strike, and laterally, giving the Phase 2 program a clear expansion focus.
Best Phase 1 intercepts included 253.0m at 1.50g/t gold, 197.5m at 1.26g/t, 265.2m at 0.60g/t, and 240.8m at 0.64g/t.
At Golden Gate South, the program will follow up a discovery hole that which returned 99.1m at 0.38g/t gold from surface to end of hole.
Tungsten Adds Critical Minerals Target
The Phase 2 campaign will also test tungsten mineralisation around the historical Golden Gate tungsten mine and a broad soil anomaly at Golden Gate South.
Tungsten was previously mined at the Golden Gate tungsten mine, most recently in 1980, while composite stockpile samples stored at the Johnson Creek Millsite returned 1.85% tungsten trioxide.
Drilling will test extensions around previous mine workings at Golden Gate Hole and around one hole that intersected 21m at 0.06% tungsten including 8m at 0.14% tungsten.
A large target west of there will also be drilled at Golden Gate South, where historical sampling defined a coincident gold and tungsten soil anomaly across an area of about 500m by 600m.
Site Readiness Supports Fast Start
Access to the Golden Gate site has been reopened and camp facilities are being re-established ahead of drilling, with supplies and technical personnel already arriving before the drill crew.
Johnson Creek Road, the main access road to Horse Heaven, is undergoing roadwork as Perpetua Resources also requires the route for heavy loads to its Stibnite project.
The Golden Gate drilling program adds to recent momentum across Horse Heaven after Antimony Ridge was selected for FAST-41 Transparency Coverage by the US Permitting Council.
The drilling program gives the company a near-term pathway to build on its 2025 gold discoveries while advancing tungsten targets around historical workings and soil anomalism.
