Diablo maps 1.9-mile Utah critical minerals trend ahead of drilling
Diablo Resources expanded its Star Range project in Utah with new soil and rock sampling that lengthened a silver-antimony trend and outlined a separate copper anomaly ahead of maiden diamond drilling. The work adds targets at South Star and East Star as the company prepares to drill North Star and advances its Horn Silver acquisition.
Why it matters: - Diablo Resources is widening its Utah exploration pipeline at a time when silver, antimony and copper sit on the 2025 U.S. Critical Minerals List. - The new targets could add drill-ready areas beyond North Star and increase the project’s near-term exploration upside.
What happened: - Diablo Resources Limited reported new soil sampling results from its Star Range critical minerals project in southwestern Utah. - South Star’s silver-antimony anomaly now extends more than 1.9 miles after sampling expanded the known trend about 0.9 mile to the northeast. - East Star now has a separate copper anomaly measuring about 1,300 feet by 660 feet. - Maiden diamond drilling at North Star is scheduled for the coming weeks.
The details: - Historical workings at South Star include silica-carbonate veins and breccia zones. - Earlier rock-chip sampling at South Star returned up to 534 grams per metric ton of silver and 0.19% antimony. - East Star’s copper anomaly aligns with historical workings and a northwest-trending structural corridor extending about 1,300 feet that remains open to the south. - Earlier reconnaissance sampling at East Star returned several rock-chip grades above 3% copper, including a peak result of 7.39%. - Latest soil results at East Star also showed anomalous silver. - Further sampling and geological work are still needed to define the geometry and structural controls before drilling. - Diablo says the results support a zoned polymetallic system at Star Range with silver, antimony and copper rather than a single isolated target. - Star Range sits about 3.7 miles west of Milford, near the historic Horn Silver Mine and the Milford Copper Mine. - The broader district has a long record of silver, copper, lead, zinc and gold production, but parts of the project area have seen limited modern exploration. - Diablo has completed a $3.5 million placement to fund a drilling-led exploration phase across its Utah portfolio. - Diablo is also moving toward completion of its acquisition of an 80% interest in the Horn Silver Project. - The Horn Silver acquisition is expected to add near-mine and regional silver, antimony and copper targets. - Near-term work will include infill and extension sampling at South Star and East Star, geological mapping, more rock-chip sampling and integration of geochemical results with geological and geophysical datasets.
Between the lines: - The South Star and East Star results suggest the Utah portfolio may be bigger and more varied than a single-drill-target story. - That matters because a broader target pipeline can support multiple follow-up programs if North Star drilling confirms the geology. - The company is also using the current work to build a case for a district-scale polymetallic system, not just isolated anomalies.
What's next: - The first major catalyst is the start of diamond drilling at North Star in the coming weeks. - Investors will also be watching whether follow-up work at South Star and East Star converts the anomalies into additional drill targets. - Diablo’s Horn Silver acquisition remains another key near-term milestone.
The bottom line: - Diablo enters a busy drilling phase with a larger Utah target set, new silver-antimony and copper anomalies, and a project lineup that could expand further if follow-up work and drilling keep delivering.
Disclaimer: This article was produced by AGP Wire with the assistance of artificial intelligence based on original source content and has been refined to improve clarity, structure, and readability. This content is provided on an “as is” basis. While care has been taken in its preparation, it may contain inaccuracies or omissions, and readers should consult the original source and independently verify key information where appropriate. This content is for informational purposes only and does not constitute legal, financial, investment, or other professional advice.
Sign up for:
Utah Digital Press
The daily local news briefing you can trust. Every day. Subscribe now.
Check Your Email!
We sent a one-time activation link to: .
Confirm it's you by clicking the email link.
If the email is not in your inbox, check spam or try again.
Welcome back!
is already signed up. Check your inbox for updates.