enCore Energy reported high-grade uranium mineralization at its Alta Mesa East project in Texas on June 1, 2026 [1].
These results are critical for the company's efforts to outline mineralization and support the permitting and expansion of In-Situ Recovery (ISR) operations. The findings suggest a larger resource area than previously identified, which could increase the long-term viability of the site.
The drilling program focused on the Pliocene Goliad Formation [2]. According to company data, uranium mineralization extended 3,700 feet [1]. The exploration team also identified four saturated mineralized sandstone horizons [1].
To ensure data quality, the company maintained specific reporting thresholds. Holes containing less than two feet of 0.02% U3O8 were not reported [1].
This drilling program is designed to define the extent of the mineralized zones. By mapping these areas, enCore Energy aims to optimize its recovery strategies and streamline the regulatory process for expanding its ISR footprint in the region [2].
The company said the results are positive for the project's growth. The identification of multiple sandstone horizons indicates a complex but potentially rich deposit that fits the profile for ISR extraction, which involves pumping leaching solutions into the ground to dissolve minerals before pumping them to the surface [2].
“uranium mineralization extended 3,700 feet”
The discovery of extended mineralization and multiple sandstone horizons at Alta Mesa East suggests that enCore Energy may be able to scale its production capacity in Texas. By utilizing In-Situ Recovery, the company can extract uranium with a smaller surface footprint than traditional open-pit mining, making the expansion of these operations more likely to meet environmental permitting requirements.
