HIGHLIGHTS
• Phoenix Copper Project (Utah, U.S.): Drilling successfully completed at the 100%- owned project, positioned directly along strike from the producing 740Mlb Lisbon Valley Copper Mine (LVCC).
• Assays Incoming: Drill samples dispatched to the laboratory with results anticipated in the coming weeks. Philadelphia Fault: Soil sampling program wrapped up across the interpreted SW extensions of this fertile structure. Assays pending.
• Fair Dinkum Prospect: Maiden drilling scheduled for Q4 2025. The prospect is strategically located 5km SE of the 60Mt Lone Wolf Deposit (12.1Kt recoverable Cu²) and just 2km east of the Flying Diamond Deposit.
• High-Grade Copper at Surface: Copper mineralisation mapped in outcrop for more than 100m at Fair Dinkum. Peak results of 2.76% Cu and 92 g/t Ag, averaging 1.12% Cu with a minimum of 0.19% Cu highlight the strength of the system.
• Growth Pipeline: Diablo is actively reviewing additional entry points into the U.S. critical minerals sector. Targets under evaluation include copper, cobalt, antimony, and rare earths- aimed at diversifying and strengthening the Company’s U.S. portfolio.
• Strategic Tailwinds: The U.S. Administration is advancing discussions to establish a US$5 billion mining investment fund to secure domestic supply of critical minerals, providing a powerful macro backdrop for Diablo’s U.S. strategy.
CEO, Lyle Thorne commented:
“The successful completion of our maiden drilling program at Phoenix represents a pivotal milestone for Diablo. With assays now in the lab and soil sampling programs completed, momentum is building towards a high-impact Q4 campaign at our flagship Fair Dinkum Prospect. Importantly, our growth strategy extends well beyond Phoenix - we are actively assessing expansion into additional U.S. critical minerals opportunities in order to capitalise on the strong demand scenario being created in the US with the US Government’s push for a home grown critical minerals industry.”
Diablo Resources Limited (ASX:DBO) (“Diablo” or the “Company”) is pleased to provide an update related to the ongoing exploration program at the Company’s 100% owned Phoenix Copper Project, Utah, USA. The Project is located ~70km southwest of Moab, Utah, USA, containing sediment hosted copper mineralisation along strike from the currently producing Lisbon Valley Copper Mine (“LVCC”).
OVERVIEW
The Phoenix Copper Project is ~70km southwest of Moab, Utah. Access is year-round, utilising sealed and maintained gravel roads.
The project consists of two separate areas, the CC and Stateline Claim Blocks, located to the northwest and southeast respectively along strike from the Lisbon Valley Copper Mine (operated by Lisbon Valley Copper Corporation - LVCC), totaling 315 unpatented lode claims covering ~6,300 acres.
CC CLAIM BLOCK
The CC Claim Block is located ~5 km northwest of the LVCC operations and ~3km south of the historical Big Indian Copper Mine. It consists of 166 unpatented lode claims for 3,320 acres staked on Bureau of Land Management (“BLM”) administered Federal lands.
DRILLING UPDATE
The Company has completed its maiden drilling program, which focused on two priority prospect areas, Philadelphia and Trenton. A total of 9 holes for 646m of drilling was completed at the two prospects, the first drilling known to have been undertaken at either area in recent times.
At Philadelphia, six holes (5 RC and 1 DC) were completed targeting surface geochemical anomalism, including surface rock grab and chip channel sampling on both the main fault and possible subsidiary splays. Holes were drilled over some 400m of strike to initially test beneath the surface geochemical anomalies associated with the mineralised Philadelphia Fault.
Thirty-one (31) rock grab samples from outcrop and dumps along the 750m strike averaged 6.29% Cu, ranging from 0.5% Cu to 45.7% Cu and 219 g/t Ag (~7oz Ag). Chip channel of outcrop sampling returned:
- 6m @ 2.13% Cu, incl. 1m @ 7.16% Cu
- 2m @ 2.40% Cu
- 3m @ 1.28% Cu
- 10m @ 0.55% Cu
The historical Philadelphia Copper Mine (circa early 1900’s) consists of several shafts and adits over some 750m of strike on copper mineralisation associated with a sub-vertical fault.
At Trenton, three wide spaced reconnaissance RC holes were completed over 1000m of strike targeting the East Bounding Fault (“EBF”), a regionally important structure known to host copper mineralisation in the Lisbon Valley. The drilling aimed to intersect the fault zone below surface soil and rock geochemical anomalism with little outcrop.
Samples are currently at the laboratory with results expected in coming weeks.
REGIONAL EXPLORATION
Soil sampling has been completed over key target areas within the recently acquired extension claims located SW of and along strike on the interpreted extension of the copper mineralised Philadelphia Fault within the CC Claim Block. The additional claims consolidate this highly prospective structure in an area of cover that is interpreted as underlain by Cutler Formation sediments.
These samples will be dispatched to the laboratory with results expected in 3-6 weeks.
NEXT STEPS
• Samples from the drilling program are currently at the laboratory with results expected in coming weeks.
• Logistical planning underway for planned drilling at the Company’s priority Fair Dinkum Prospect, anticipated for Q4 2025.
• Results of regional stream sediment sampling at Stateline and soil sampling programs on the Philadelphia extension are completed, with results awaited.
• In parallel with the ongoing exploration at Phoenix, the Company is actively reviewing further expansion into the U.S. critical minerals sector. The Company is evaluating new opportunities across other strategic minerals, providing potential to diversify and enhance Diablo’s US portfolio while positioning the Company as a key participant in the North American critical minerals supply chain.
About us:
Diablo Resources (DBO:ASX) is focused on creating shareholder value through the discovery and development of major copper and gold deposits in North America. The Company has three , 100% owned, quality projects located in the USA, Phoenix Copper Project, King Solomon Gold and Devils Canyon Gold Projects.
Contact details:
Jane Morgan
Director
+61 405 555 618