IsoEnergy Ltd. announced a new phase of drilling at its Flatiron Project in the Henry Mountains of Utah. The program will add seven surface rotary drill holes with core tails, covering a total of 11,000 feet, and follows three holes completed in late 2025.
The Flatiron Project sits approximately seven miles northwest of IsoEnergy’s past‑producing Tony M uranium mine and follows the same geological trends that host the company’s flagship Hurricane deposit. The exploration focus is the Salt Wash Member of the Morrison Formation, and this program represents the first follow‑up on historic district‑scale work from the 1980s.
IsoEnergy’s land position for the project totals 8,800 acres, comprising 370 lode claims staked in 2024 and two Utah state leases added later. The Henry Mountain District has produced about 1.4 million pounds of U3O8 to date, underscoring the high‑grade nature of the area.
The drilling expansion is a tangible step toward expanding IsoEnergy’s resource base in a high‑grade uranium district. It also supports the company’s broader U.S. strategy of advancing past‑producing mines to production and exploring new targets, leveraging existing infrastructure and proximity to Energy Fuels’ White Mesa Mill. The program is part of a coordinated effort to de‑risk the Tony M mine and unlock the potential of the Henry Mountain District.
CEO Philip Williams said, "Restarting drilling at Flatiron and the completion of the Tony M Bulk Sample represent two important components of IsoEnergy's U.S. strategy. Our exploration program is focused on systematically building on decades of historical work to unlock the potential of the Henry Mountain District, while the results from the bulk sample simultaneously aid in de‑risking Tony M for production."
The announcement comes amid growing interest in secure domestic uranium supply, with the U.S. and other governments seeking to diversify their supply chains and reduce reliance on foreign sources. IsoEnergy’s focus on high‑grade, U.S.‑based resources positions it to benefit from this broader market trend.
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