American Uranium (ASX:AMU) has reported progress on infill and expansion drilling at the Lo Herma In-Situ Recovery (ISR) Uranium Project in Wyoming, US. This program builds on the previous drill campaign and resource update to 9.45 million pounds, as previously reported.
The company has completed 18 of the 55 planned mud rotary drill holes across 3,243m, with a focus on converting inferred resources to indicated at the proposed Mine Unit 1 and expanding resources to the south of proposed Mine Unit 2.
Drilling to date at Mine Unit 1 has focused on infill drilling to increase the density of drilling in an area that can be converted from inferred to indicated, with the goal of growing resources in this area and increasing overall resource confidence.
The drilling has intercepted mineralisation of more than 0.02% (200 parts per million) equivalent uranium oxide in 11 of 18 holes drilled. Key highlights include the best intercepts to date at 5.8m at an average 0.056% (560 parts per million) equivalent uranium oxide in hole LH-26-026.
CEO Bruce Lane says the early results confirm continuity of mineralisation at Mine Unit 1.
“With a high proportion of holes returning mineralisation above cut-off and several high-grade thickness intercepts, we are building confidence in the conversion of inferred material to indicated ahead of our next mineral resource estimate (MRE),” Lane says.
“With further infill drilling underway and a step-out program scheduled to commence, we remain well positioned to deliver an updated resource and Scoping Study in Q3 2026, advancing Lo Herma toward ISR development in the context of a strengthening uranium market and growing US policy focus on domestic nuclear fuel security.”
Approximately 11 additional infill drill holes are planned at Mine Unit 1, with around 15 step-out drill holes planned south of Mine Unit 2.
American Uranium is focused on advancing the Lo Herma ISR Uranium Project in Wyoming, US.
Write to Amy Rotman at Mining.com.au
Images: American Uranium
