Dreadnought Resources Defines 20km Gold Anomalies at Mangaroon High Range

Dreadnought Resources Reports Multiple Gold-in-Soil Anomalies Across 20km at Mangaroon High Range North and Northwest

Dreadnought Resources (ASX: DRE) has reported multiple strong gold-in-soil anomalies across an approximately 20km strike at the High Range North and Northwest targets within its 100%-owned Mangaroon Gold Project in Western Australia's Gascoyne region. According to the ASX announcement, the anomalies are associated with major geological structures within the Edmund Group and are supported by elevated pathfinder elements including silver, arsenic, molybdenum, antimony and tellurium, with local copper, lead and zinc.

The result matters because this is reported to be the first gold-focused exploration ever conducted in the High Range area, despite historical prospecting and geological similarities to the original Bangemall Goldfield at Cobra. For investors, first-pass success over this amount of strike suggests Dreadnought may be defining a larger district-scale gold system rather than a single isolated target.

First Gold Exploration at High Range Has Identified Multiple Anomalies

In the announcement, Dreadnought said the combined High Range North and Northwest prospect spans roughly 20km by 6km and sits within metasediments, mafic intrusive rocks and chemical sedimentary units of the 1.67 billion-year-old Edmund Group. The targets are located near the Edmund and Collins shear zones, which are described as splays off the crustal-scale Minga Bar Fault.

The company reported that recent target generation and target definition soil surveys identified:

• Multiple strong gold-in-soil anomalies
• Associated Ag-As-Mo-Sb-Te +/- Cu-Pb-Zn pathfinder anomalism
• A spatial relationship between anomalous zones and major structures interpreted from magnetic surveys

According to Dreadnought, these results represent the first time gold-in-soil anomalies have been observed in this belt through systematic modern exploration. That increases the significance of the geochemical work, because anomalies identified on a maiden campaign can shape the next phase of mapping, sampling and eventual drilling.

What Did the Managing Director Say?

"Making a large-scale gold discovery is a key pillar of our Finding More Gold Faster Strategy," said Dean Tuck, Managing Director.

"These infill soil results from High Range North and first pass soil results from High Range Northwest have successfully defined multiple strong gold-in-soil anomalism over ~20km strike."

The next step, according to the update, is detailed mapping and additional surface sampling to define and rank drill targets. Furthermore, Dreadnought said it is aiming to have targets ready for discovery drilling by the end of 2026 or the start of 2027.

Why the Geology at High Range Is Attracting Attention

The geological setting described in the ASX announcement is consistent with terrain often considered prospective for orogenic gold. This deposit style is formed when gold-bearing fluids move through large fault systems during mountain-building and tectonic activity, with gold tending to accumulate where structures and rock contacts create suitable traps.

At High Range, Dreadnought is exploring where several favourable ingredients occur together:

• Large structural corridors, including splays from the Minga Bar Fault
• Shear zones that may act as fluid pathways
• Host rocks with chemical and mechanical contrasts, which can help localise mineralisation

For non-specialist investors, the core point is simple. Gold systems of this type are commonly linked to major faults, and Dreadnought's soil anomalies are reported to sit close to those structures. However, while soils do not confirm an economic deposit, they do provide an early geochemical signal that can guide drilling effectively.

What Is a Gold-in-Soil Anomaly?

A gold-in-soil anomaly is an area where soil samples contain elevated gold compared with the local background level. Soil does not need to contain visible gold or ore-grade material for it to be useful. Instead, explorers look for subtle increases that may indicate mineralisation in the underlying bedrock.

In practical terms, soil sampling helps answer three early-stage questions:

1. Is there a geochemical signal? Elevated gold and related elements can indicate a mineral system nearby.
2. How large is the target area? A line or cluster of anomalous samples can define strike length and orientation.
3. Where should drilling go first? When soils align with structures, rock types or geophysical features, explorers can focus on the most prospective zones.

Dreadnought used Ultra Fine Fraction (UFF) soil sampling, which separates the finest particles for laboratory analysis. According to the announcement's technical tables, this method has been used across Mangaroon to improve sensitivity under shallow cover. For investors, the advantage is that subtle buried systems may be easier to detect than with conventional surface sampling alone.

High Range Is Part of a Broader Camp-Scale Pipeline at Mangaroon

The High Range update sits within a larger target generation programme across Mangaroon. In the announcement, Dreadnought said stream sediment sampling has highlighted seven camp-scale prospects, with many of these reportedly showing stronger and/or larger gold and pathfinder anomalies than around Star of Mangaroon.

That is an important portfolio point. Mangaroon is not being advanced as a single-target exploration story. Instead, Dreadnought is working through multiple targets using stream sediment sampling, soil geochemistry, mapping and litho-structural interpretation.

The current status across the main Mangaroon prospects is outlined below.

This broader pipeline gives the company multiple opportunities to generate follow-up drilling targets. It also creates a steady flow of exploration news, which can be relevant for investors tracking near-term catalysts.

Star of Mangaroon Remains the Project's Resource Anchor

While High Range remains an early-stage target definition story, Dreadnought's Mangaroon project already includes a gold resource at Star of Mangaroon. According to the company's resource summary referenced in the announcement, Star of Mangaroon hosts 23,400 ounces at 12.8 g/t Au, with 84% in the Indicated category.

The detailed table in the announcement also shows the broader resource inventory by material type:

*Surface reported at a 0.5 g/t Au cut-off, while the other categories are reported at a 2 g/t Au cut-off.

The announcement also reiterates metallurgical testwork from Star of Mangaroon, which reportedly achieved 96.7% combined recovery using standard gravity and carbon-in-leach processing, including 74.4% average gravity recovery. In straightforward terms, that suggests the gold may be amenable to conventional processing, subject to further development work.

Dreadnought has described its approach as a self-funded explorer strategy, centred on a potential high-grade open pit at Star of Mangaroon with funding, haulage, development and processing outsourced to third parties. For investors, this matters because management is presenting Star as a potential source of future cashflow that could reduce reliance on equity funding if development pathways are confirmed.

Upcoming Catalysts Across Mangaroon, Illaara and Gifford Creek

The ASX update sets out an active second half of 2026 across Dreadnought's broader portfolio. In addition to more Mangaroon gold-in-soil results, the company has flagged work at Illaara Gold and Gifford Creek.

Key upcoming milestones listed in the announcement include:

This timetable suggests that Dreadnought is likely to remain news-active across several commodities and projects. For the market, repeated exploration and study milestones can help maintain attention, especially where projects are at different stages of advancement.

Dreadnought's Wider Portfolio Provides Several Value Drivers

The announcement also restates the company's broader asset base across gold, critical minerals and base metals. That diversification means investor exposure is not limited to one target or one commodity theme.

Key portfolio assets include:

This spread of assets adds both opportunity and complexity. A positive view may focus on multiple discovery pathways and diversified news flow. A more cautious view may note that advancing several projects at once requires ongoing capital discipline and prioritisation.

Why This Mangaroon Update Matters to Investors

The High Range announcement adds weight to Dreadnought's claim that modern exploration at Mangaroon is still at an early stage. Several aspects stand out from the report.

First, the 20km strike length is large for a maiden gold-focused surface programme. Second, the anomalies are reported to coincide with major structures, which is a relevant feature in structurally controlled gold systems. Third, the area has had historical prospecting but no systematic modern gold exploration, which means Dreadnought may be testing ground that has not been properly assessed with current methods.

The investment case from this update is therefore less about immediate resource definition and more about target quality and scale. Soil anomalies do not confirm an economic discovery, but they can materially improve the odds of effective drill targeting when they align with favourable geology and geophysics.

According to the ASX update, Dreadnought has now defined multiple gold-in-soil anomalies across a 20km-long High Range corridor at Mangaroon, with follow-up mapping and sampling planned ahead of potential drilling by late 2026 or early 2027. Combined with an existing high-grade Star of Mangaroon resource and a broader pipeline of camp-scale prospects, the report positions Mangaroon as an expanding gold exploration focus within Dreadnought's diversified portfolio.

If subsequent surface work strengthens target ranking and drilling confirms bedrock mineralisation, High Range could become an increasingly important part of the Mangaroon gold story. For now, the announcement shows that the first systematic gold work in the area has generated enough geochemical evidence to justify the next phase of exploration.

Want to Track the Next Major ASX Gold Discovery as Soon as It's Announced?

Discovery Alert's proprietary Discovery IQ model scans ASX announcements in real time, delivering instant alerts on significant mineral discoveries — including early-stage gold exploration stories like Dreadnought Resources — so subscribers can act decisively ahead of the broader market. Explore how historic ASX mineral discoveries have generated substantial returns on Discovery Alert's dedicated discoveries page, and begin your 14-day free trial today to position yourself at the forefront of the next major find.