Myriad Uranium completes large-scale geophysical survey of the Tongshan project, unlocking the overlooked uranium resource potential

Myriad Uranium Corp. (CSE: M; OTCQB: MYRUF; FSE: C3Q) recently announced the successful completion of large-scale airborne electromagnetic and magnetic surveys covering the entire Copper Mountain Uranium Project. The survey concluded on schedule before winter, marking a new phase in the company’s in-depth exploration of this Wyoming project area.

Why is this survey so critical?

CEO Thomas Lamb revealed that the significance of this airborne survey goes far beyond the technology itself. Myriad’s extensive historical data, especially the comprehensive assessment study completed in 1982 by Bendix Engineering for the U.S. Department of Energy, indicates that the entire region’s uranium resources amount to approximately 655 million pounds, with at least 70%—about 245 million pounds—located within Myriad-controlled areas (the so-called “central zone”).

Historically, several high-potential areas of Copper Mountain were not fully developed mainly due to difficult terrain. This airborne survey—particularly the radiometric measurements—will illuminate these areas like never before, allowing Myriad to verify and understand Bendix’s findings with more scientific rigor.

Technical specifications and execution details

The survey was conducted by Precision Geosurveys, based in Reno, Nevada, using an Airbus AS350 helicopter. The operation covered 191.8 square kilometers, with 2,114 kilometers of survey lines spaced 100 meters apart, combined with 1,000-meter tie lines, flying at an altitude of 30 meters along a north-south orientation.

Magnetic data was collected using sensors such as Scintrex CS-3/Geometrics with sensitivity better than 0.01 nT, sampling at 20Hz, equipped with three-axis real-time compensation in the helicopter’s nose pod. Two or more base station magnetometers synchronized with GPS were used to calibrate and eliminate diurnal magnetic variations.

Radiometric data was gathered via Medusa gamma spectrometer systems, equipped with 21-liter self-calibrating NaI(Tl) crystals, providing 512-channel output at a sampling rate of 1Hz. Position control was achieved through a WAAS-enabled GPS navigation system integrated with the pilot’s display and data logger, ensuring line accuracy within ±8 meters under good weather conditions. Altitude was controlled using an Opti-Logic laser rangefinder.

Project potential and future plans

Historically, Copper Mountain has been known for multiple known uranium deposits and abandoned mines, including Arrowhead Mine, which produced 500,000 pounds of triuranium octoxide (U3O8). In the late 1970s, Union Pacific conducted extensive drilling and development work here, costing approximately CAD 117 million (2024 value), and even drafted mining plans for use in California Edison’s nuclear reactors. However, due to uranium price declines in 1980, mining operations were halted before they could commence.

To date, Copper Mountain has approximately 2,000 drill holes on record, and exploration potential remains vast. Preliminary unprocessed magnetic and radiometric images have been received, with final processed data expected to be delivered by January 2026. These data will provide precise targets for Myriad’s next round of drilling planned for 2026.

Myriad also holds 100% interests in the Red Basin Uranium Project in New Mexico, which has significant upside potential due to its shallow mineralization characteristics.