Union Star Metals Ltd (ASX:USM) Multiple Datasets Highlight Large Concealed Gold Target at Cobb Creek, Ahead of Drilling
2 June 2026
Price Sensitive Announcement $
Highlights:
- Integrated gravity, geochemical and geological interpretation at the Cobb Creek Project in Nevada, USA has defined a large, concealed gold target beneath shallow volcanic cover, with multiple independent datasets converging ahead of planned drilling
- The Central Concealed Target is defined by a prominent gravity low spatially associated with a donut-shaped thallium anomaly, surrounding historical gold and silver mineralisation and interpreted structural corridors within Nevada’s highly prospective Independence Trend
- Shallow volcanic cover is interpreted to have masked a broader mineralised system from historical exploration, with historical drilling across Cobb Creek averaging only ~100m depth and largely focused on shallow oxide mineralisation peripheral to the target area
- Historical gold and silver occurrences surrounding the central concealed target area include a highlight result of 2 g/t gold and 337 g/t silver, potentially indicating the outer margins of a buried system
- DDIP geophysical surveys scheduled to commence next month ahead of drilling targeted for September 2026
- Permitting for initial drill testing now well advanced
Overview:
Union Star Metals Limited, a Nevada-focused gold explorer advancing the Cobb Creek Project in the highly prospective Independence Trend, is pleased to announce that integrated gravity, geochemical and geological interpretation has defined a large, concealed gold target beneath shallow volcanic cover at Cobb Creek, where multiple independent datasets are converging ahead of planned drilling.
The emerging Central Concealed Target is defined by a prominent gravity low interpreted to potentially reflect hydrothermal alteration, structural disruption and/or concealed lithological variation beneath shallow post-mineral volcanic cover. The gravity low spatially coincides with a large donut-shaped thallium-in-soil anomaly, interpreted intersections of major north-northeast and northwest trending structures, and multiple historical gold and silver occurrences surrounding the margins of the target area.
Cover may have masked the broader system
The Central Concealed Target occurs beneath shallow post-mineral andesite cover interpreted to mask underlying mineralisation and gold-in-soil signature. Historical gold occurrences and shallow historical drilling are predominantly located around the margins of the interpreted volcanic cover and associated gravity low, while the central portion of the target area remains entirely untested by drilling.
The circular thallium anomaly surrounding the gravity low is considered particularly significant, as thallium is commonly associated with epithermal and hydrothermal alteration halos in major Nevada gold systems. The Company believes this relationship indicates that historical exploration focused on exposed peripheral mineralisation, while the concealed core of the broader hydrothermal system beneath cover remains an untested drill target. Highly elevated gold and silver in rock samples surrounding the central concealed target area — including a highlight result of 2 g/t gold and 337 g/t silver — may indicate the outer margins of a buried system of meaningful scale.
Historical drilling across Cobb Creek averaged only approximately 100m depth and was largely focused on shallow oxide mineralisation peripheral to the target area, meaning the central concealed zone has never been drill-tested. The Company believes the convergence of these multiple independent datasets significantly enhances the prospectivity of the target and may indicate the presence of a broader concealed mineralised system beneath cover.
Advancing systematically toward drilling
The Company’s exploration strategy is focused on systematically advancing and prioritising targets through staged technical work prior to drilling. Current workstreams include final planning for DDIP geophysical surveys, structural modelling and drill target refinement, and environmental and cultural permitting activities for planned drilling programs.
The planned DDIP program scheduled for June is designed to further refine the geometry and potential depth extent of the Central Concealed Target ahead of drilling. Initial drilling is currently targeted to commence during September 2026, at which point Cobb Creek will receive its first drill test of the concealed core of the interpreted hydrothermal system.
Company Notes:
Union Star Metals CEO Lucas Stanfield commented: “What is becoming increasingly compelling at Cobb Creek is the way multiple independent datasets are now converging on the Central Concealed Target. The relationship between the gravity low, donut-shaped thallium anomaly, shallow volcanic cover and surrounding historical gold and silver mineralisation is defining a highly prospective concealed gold target beneath an area that appears to have seen no historical drilling. With permitting for initial drill testing now well advanced, DDIP surveys scheduled to commence next month and drilling targeted for September, we believe Cobb Creek is rapidly evolving into a compelling Nevada gold exploration story.”
Full ASX Announcement: https://hotcopper.com.au/threads/ann-large-concealed-gold-target-at-cobb-creek-ahead-of-drilling.9180047/