– Completed high-resolution LiDAR survey of the historic underground mining operations at the Desert Antimony Mine (“DAM”) Prospect, part of the Mojave Project in California
– Research confirms ~236m of development spread over four levels with a stroke length of 130m
– Spatial location of the 3 mapped quartz-carbonate-antimony veins exposed underground, as evidenced by the underground cavities where mineralization was previously mined through open stopes
– Detailed geological mapping begins in November to define vein geometry and mineralization features
– Progress is being made in underground access and safety assessments to enable targeted sampling and level verification
– LiDAR technology is part of Locksley’s data-driven, accelerated mine redevelopment strategy to restore domestic innovation to the U.S. antimony supply
The LiDAR confirms ~236 meters of underground development spread over four different levels and occurring over a strike length of ~130 meters. The 3D data delineates three previously mined areas (via open stopes) of the mineralized quartz-carbonate-stibnite veins that correspond to known historical production.
This information supports the refinement of the geological interpretation and provides a basis for the upcoming targeted drilling campaign.
Kerrie Matthews Locksley Managing Director & CEO commented;
“The LiDAR dataset has given us a higher level of geological detail and insight into historic mining at the Desert Antimony Mine that did not previously exist.
The research has confirmed the position of the historically mined stibnite-bearing veins and the quality of this data significantly improves our ability to progress drill design with much greater precision.
Importantly, this work also supports our broader Mine-to-Metal US growth strategy by supporting a fully domestic antimony supply chain in the US.”
Strategic and technical context
The completion of the LiDAR survey marks another major milestone in Locksley’s execution of its U.S. Critical Minerals Strategy, providing a higher level of geological knowledge as the company progresses toward the redevelopment of the Desert Antimony Mine. The first 3D mapping data from the survey confirms the extent of historically mined stibnite-bearing veins and helps target drilling programs.
The data set also supports Locksley’s broader adoption of the U.S. Mines-to-Metal Growth Strategy, which aims to restore a fully 100% U.S. domestic antimony supply chain. The LiDAR improves understanding of historical mining activity and provides a technical foundation that will support continued engagement in the U.S. government’s strategic financing pathways, including the recently announced U.S. ExportImport Bank LOI and Department of Defense initiatives aimed at rebuilding domestic capacity for critical minerals.
Exploration and development process
The LiDAR results are now being incorporated into an updated 3D geological model.
Simultaneous metallurgical testing and process route assessments ensure that geological insights are fully aligned with downstream value creation.
Next steps
– Detailed geological mapping of the underground work at DAM, planned for November
– Integration of LiDAR research into the 3D geological model and preparation of JORC exploration targets
– Assessment of soil conditions within the historic operation for the purpose of detailed subsurface sampling (subject to determination of safe working conditions).
*To view tables and figures, go to:
https://abnnewswire.net/lnk/JM0GBX81
About Locksley Resources Limited:
Locksley Resources Limited (ASX:LKY,OTC:LKYRF) (FRA:X5L) (OTCMKTS:LKYRF) is an ASX-listed explorer focused on critical minerals in the United States of America. The company is actively advancing exploration of two key assets: the Mojave project in California, targeting rare earth elements (REEs) and antimony. Locksley Resources aims to generate shareholder value through strategic exploration, discovery and development in this highly promising mineral region.
Mojave Project
Located in the Mojave Desert, California, the Mojave Project includes more than 250 claims spread across two contiguous prospect areas, the North Block/Northeast Block and the El Campo Prospect. The North Block is directly adjacent to MP Materials’ claims, while El Campo lies along the Mountain Pass Mine strike and is surrounded by MP Materials’ claims, highlighting the strong geological continuity and exploration potential of the project area.
In addition to rare earths, the Mojave Project is home to the historic “Desert Antimony Mine,” which last operated in 1937. Although the United States currently has no domestic antimony production, demand for the metal remains high due to its essential role in defense systems, semiconductors, and metal alloys. With significant surface sampling results, the Desert Mine prospect represents one of the highest known antimony occurrences in the US
Locksley’s North American position is further strengthened by the increasing geopolitical urgency to diversify supply chains away from China, the global leader in both REE and antimony production. With the first drilling program now planned, the Mojave project is uniquely positioned to align with U.S. strategic objectives around critical mineral independence and economic security.
Tottenham project
Locksley’s Australian portfolio includes the advanced Tottenham Copper-Gold Project in New South Wales, targeting VMS-style mineralization
Source:
Locksley Resources Limited
Contact:
Kerrie Matthews
General manager
Locksley Resources Limited
T: +61 8 9481 0389
Kerrie@locksleyresources.com.au
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