World-Class Address
The Athabasca Basin hosts some of the world's highest-grade uranium deposits. Hidden Bay sits on the eastern margin near the historic Rabbit Lake mine.
Hidden Bay is located on the eastern margin of Canada’s Athabasca Basin — home to some of the world’s highest-grade uranium deposits — targeting basement-hosted mineralisation consistent with styles observed across the basin.
Project Snapshot
Location
Northern Saskatchewan, Canada — eastern margin, Athabasca Basin
Proximity
~20 km SSW of historic Rabbit Lake uranium mine; ~30 km from Points North logistics hub
Area
32 km²
Ownership
Agreement to acquire 100% of Hidden Bay
Edge of the Athabasca Basin
Hidden Bay sits on the eastern edge of the Athabasca Basin.
Close to Infrastructure
The provincial highway runs through the project, which is 30 km from Points North and 20 km from the Rabbit Lake Mine
Key Structural Trends
ENE reverse faults; N–S faults linked to the Dragon Lake Fault System
Primary Target Style
Basement-hosted uranium mineralization
Location and Access
Hidden Bay is located in northern Saskatchewan on the eastern margin of the Athabasca Basin, approximately 20 km south-southwest of the historic Rabbit Lake uranium mine and 30 km from the Points North logistics hub.
The project covers approximately 32 km² where glacial sediments average approximately 22 m in thickness. Manitou Falls Formation sandstone unconformably overlies basement rocks in the north-western half of the project, where it averages approximately 10 m in thickness and reaches a maximum of 27 m.
Why Hidden Bay Matters
Shallow Cover
Glacial sediments average approximately 22 m in thickness, while Manitou Falls Formation sandstone is restricted to the north-western half of the project and averages approximately 10 m where present, providing favourable conditions for testing basement-hosted uranium targets.
Untested Conductors
Thunderbird Resources' 2024 drilling intersected sheared graphitic metapelites with elevated uranium values in structures not effectively targeted by previous exploration.
Analogous Deposits Nearby
The Dragon Lake Fault System extends through the Hidden Bay Project and is interpreted to have controlled the location of the nearby Raven, Horseshoe and Rabbit Lake uranium deposits.
Project History
The Hidden Bay Project has been explored intermittently over several decades.
Historic Exploration
Historical exploration included numerous shallow drillholes but was characterised by wide drill spacing and limited geophysical targeting. Drilling largely failed to systematically test prospective structures, and only isolated, low-grade uranium intersections were reported. Early geophysical surveys were ineffective by modern standards, which explains why favourable basement structures were not adequately tested.
Thunderbird Exploration (2022–2024)
Thunderbird Resources Limited (now Xpedra) completed airborne magnetic, gravity and radon surveys, identifying multiple structural features and radon anomalies considered favourable for uranium mineralisation. In 2024, five diamond drillholes totalling 1,781 m were completed, intersecting the Athabasca unconformity at shallow depths.
Key outcomes included the intersection of strongly altered basement zones and fault-related graphitic shear zones with slightly elevated gamma responses. While no significant uranium mineralisation was intersected, drilling confirmed the presence of key ingredients of Athabasca-style uranium systems, which had not been effectively tested by earlier exploration.
Structural Setting
Two principal regional structural trends extend through the Project:
- ENE-trending reverse and thrust faults, similar to the fault hosting 92 Energy’s Gemini discovery; and
- North–south sinistral faults interpreted to be related to the regional Dragon Lake Fault System, which is interpreted to have controlled the locations of the Raven, Horseshoe and the Rabbit Lake deposits.
- These regional structures provide pathways for mineralising hydrothermal fluids, with fluid flow preferentially focused at structural intersections and at sites where the structures interact with competent basement lithologies, such as Archean basement rocks forming domes, creating favourable loci for basement-hosted uranium mineralisation.
Exploration Focus
Powerhaus has entered into an agreement to acquire 100% of the Hidden Bay Project from ASX-listed Xpedra Resources Ltd. Completion of the acquisition remains conditional on the Company receiving confirmation from ASX of Official Quotation.
Geophysical Data Review
Compile and review available geophysical datasets from Hidden Bay and the surrounding area to refine structural framework and prioritise target areas.
Ground Resistivity & Gravity
Undertake targeted surveys focused on prospective structural zones, particularly in the eastern project area adjacent to the Dragon Lake Fault.
Drill Target Refinement
Integrate resistivity and gravity data to better define structurally controlled alteration systems near the Dragon Lake Fault and contacts with Archean granitoids.
Explore Powerhaus' Argentinian Portfolio
Hidden Bay is supported by Powerhaus’ flagship Malbec project in the Escalante region of Chubut Province , and by additional uranium opportunities at Polo and El Tropezon.
