Status
Operating
Deposit type
Sandstone roll-front (ISR)
Mining method
ISR
Targeted restart
2024
Published figures
Estimated| Deposit type | Sandstone roll-front (ISR) | source |
| Mining method | ISR | unsourced |
| Targeted restart | 2024 | source |
| Ownership | enCore Energy (70%), Boss Energy (30%) | source |
Quarterly production (100% basis)
100% basisDried and drummed U3O8 is the production figure; upstream stages are labelled and never substituted. Hover a figure for the company's wording and unit; click it to open the document. The annual tU figure above is the WNA mining table, a different measure. Sector-wide tracker →
| Period | Dried and drummedMlb U3O8, 100% basis | Loaded on resinMlb U3O8, 100% basis | Source |
|---|---|---|---|
| Q4 FY26 (June 2026 quarter) | 0.04unverified | — | source |
| Q3 FY26 (March 2026 quarter) | 0.10unverified | — | source |
| Q2 FY26 (December 2025 quarter) | 0.14unverified | — | source |
| Q1 FY26 (September 2025 quarter) | 0.21unverified | — | source |
| Q4 FY25 (June 2025 quarter) - restated on drummed basis | 0.18unverified | 0.20unverified | source |
| March Q3 FY25 (March 2025 quarter) | — | 0.10unverified | source |
Central Processing Plant commissioned June 2024; EIA reports ongoing production (Q1 2026 quarterly DUPR).
Coordinates are approximate. Figures are curated from company filings, technical reports and the World Nuclear Association, with a citation per figure; unsourced values are flagged, not hidden. Informational only — not investment advice.
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Yellowcake Analytics. "Alta Mesa — Uranium Mine Profile." Yellowcake Analytics, 2026, https://www.yellowcakeanalytics.com/sites/alta-mesa.
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