Gateway Mining has extended the Cowza gold mineralisation footprint within its Yandal Project from 800 metres to 2.5 kilometres, uncovering consistent high-grade gold intercepts in fresh rock and preparing for deeper drilling to define the system's scale.
- Cowza strike length grows to 2.5km with continuous high-grade gold
- First fresh rock intercepts include 27m at 1.4g/t Au from 84m
- Gold system linked to a 4.5km demagnetised shear zone
- Second RC rig arriving to test fresh rock mineralisation depth
- Gateway holds $15.7m cash and $5.6m in liquid ASX securities
Cowza Gold System Extends to 2.5 Kilometres
Gateway Mining Limited (ASX:GML) has significantly expanded its Cowza gold discovery at the Yandal Gold Project, with recent aircore drilling extending the strike length of continuous high-grade gold mineralisation from an initial 800 metres to approximately 2.5 kilometres. The system remains open along strike and at depth, highlighting the prospect’s growing scale within a structurally complex corridor.
Key drill results underpinning this expansion include hole CZAC071, which returned 27 metres at 1.4 grams per tonne (g/t) gold starting from 84 metres downhole, including a high-grade 1 metre interval grading 3.3g/t Au at the bottom of the hole. This intercept is notable as the first to properly test mineralisation within fresh rock at Cowza, suggesting the system has substantial depth potential beyond weathered zones.
Structural Controls and Geological Setting
The Cowza gold mineralisation is structurally controlled along a major shear zone developed at the contact between intermediate volcanic and mafic volcanic rocks. This contact zone is characterised by intense shearing, quartz-carbonate-pyrite veining, and pervasive silica-sericite alteration. The broader mineralised corridor spans approximately 4.5 kilometres and is marked by a strong demagnetised signature, interpreted as evidence of a large-scale hydrothermal event responsible for gold deposition.
Another significant target within Cowza is the footwall zone, where hole CZAC069 intersected 16 metres at 1.9g/t Au from 88 metres beneath a shallower supergene zone. Both the primary shear zone and footwall targets remain largely untested at depth along the 2.5km strike, leaving considerable upside potential.
Drilling Strategy and Funding Position
Gateway is poised to accelerate its exploration with the arrival of a second reverse circulation (RC) rig at the Yandal site this weekend. The new rig will initially focus on Cowza to delineate the fresh rock gold system and map its extent. This move aligns with Gateway’s broader strategy of rapidly defining mineralised footprints across its Yandal portfolio, supported by a strong cash position of $15.7 million and $5.6 million in liquid ASX securities as of the March 2026 quarter.
Chief Executive Officer Richard Pugh emphasised the significance of the recent results, noting that the drilling has consistently intersected the gold system on every line tested, and that the high-grade core remains open at depth. He highlighted that the extensive demagnetised zone and structural complexity suggest Cowza could evolve into a very large gold system of substantial scale.
Outlook and Upcoming Catalysts
Assay results from drilling extending approximately 2 kilometres north of the current 2.5km strike are pending, with Gateway expecting to release these within a fortnight. The company’s focus will remain on confirming the scale and continuity of mineralisation in fresh rock through RC drilling, which may dominate Cowza exploration efforts for the foreseeable future.
This announcement builds on Gateway’s recent momentum in the Yandal district, where the company has been actively expanding multiple gold systems through a combination of aircore and RC drilling. The strategic deployment of multiple rigs and robust cash reserves position Gateway to rapidly convert these early-stage discoveries into defined mineral resources.
Bottom Line?
Gateway’s Cowza discovery is rapidly evolving into a major gold system, but the true scale and economic potential hinge on upcoming RC drilling and pending assays.
Questions in the middle?
- Will the pending northern assays confirm continuous high-grade mineralisation beyond 2.5km?
- How thick and high-grade is the fresh rock core of the Cowza shear zone at depth?
- What are the implications of the 4.5km demagnetised corridor for regional exploration targeting?