Located in southeastern Utah, Mariana Copper One is an operating copper mine and refinery currently producing high-purity copper cathode for the U.S. market. The site, which we acquired in late 2025, has been operating for over 15 years and includes an existing open pit mine, a heap bioleaching operation, a hydrometallurgical refining circuit utilizing solvent extraction and electrowinning, and significant expansion potential. Over the past 12 months, Mariana partnered with the existing site team - previously Lisbon Valley Mining Company - to develop and deploy advanced software and autonomous systems that will overcome past operational challenges and expand copper output.
Links
- https://marianaminerals.com/news/copper-one
- https://maps.app.goo.gl/F2gms7gK5N4WwEjp8
- https://www.mindat.org/loc-14849.html
Notes
Owner/operator: Mariana Minerals
Nearest settlement: La Sal (400 inh; 21 km)
Production: 50 ktpa (including scrap processing through integrated refinery)
Köppen climate type: BSk - Cold semi-arid (steppe) climate
Media
- Apr-26: Sandvik delivers autonomous-ready drill rig to Utah copper mine (checked 27-Apr-26)
Created Apr-26;