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  2. Sierrita mine - Wikipedia

    en.wikipedia.org/wiki/Sierrita_Mine

    The mine has one of the largest copper reserves in the United States and in the world. In 2018, the deposit had estimated proven and probable reserves of 3,369 million tonnes of ore grading 0.23% copper and 0.02% molybdenum , along with an additional resource of 1,378 million tonnes of mineralized material at 0.17% copper and 0.02% molybdenum.

  3. Sierrita Mountains - Wikipedia

    en.wikipedia.org/wiki/Sierrita_Mountains

    The Sierrita Mountains (English: "Little Mountains") is a minor mountain range about 40 mi (60 km) southwest of Tucson, in Pima County, Arizona. Historically, the area has seen extensive mining and ranching activity: several ranches, abandoned mines, and the large Sierrita Mine are located in the area. The highest point in the mountains is ...

  4. List of copper mines in the United States - Wikipedia

    en.wikipedia.org/wiki/List_of_copper_mines_in...

    Underground mine producing nickel and copper concentrates 18 (2018) [8] 15 Phoenix Lander County, Nevada: Newmont Mining Corporation: Gold-copper ore, concentrated and leached 16 (2018) [6] 16 Lisbon Valley San Juan County, Utah: Lisbon Valley Mining Company Copper ore, open pit, heap leached 10–15 (2018) [9] 17 Miami: Gila County, Arizona ...

  5. A historic mining community is decimated as the Park Fire and ...

    www.aol.com/firefighters-cautiously-watch...

    The Borel Fire has destroyed the historic mining community of Havilah, with only a few buildings left standing, the Los Angeles Times reported. “We lost everything — it’s all gone ...

  6. Wildfire turns scenes of L.A. into a nightmare of burning ...

    www.aol.com/flames-engulf-southern-california...

    Morone attributed the two deaths to the Eaton Fire, which erupted Tuesday night. There were a significant number of injuries, he said, and more than a hundred buildings had burned.

  7. Firefighters gain ground on deadly L.A. wildfires, but more ...

    www.aol.com/news/palisades-fire-seen-across-l...

    As of Saturday evening, the Palisades fire was 11% contained and the Eaton fire, which devastated much of Altadena and is now burning mostly in the San Gabriel Mountains, was 15% contained. On ...

  8. Porphyry copper deposit - Wikipedia

    en.wikipedia.org/wiki/Porphyry_copper_deposit

    Porphyry copper deposits represent an important resource and the dominant source of copper that is mined today to satisfy global demand. [6] Via compilation of geological data, it has been found that the majority of porphyry deposits are Phanerozoic in age and were emplaced at depths of approximately 1 to 6 kilometres with vertical thicknesses on average of 2 kilometres. [6]

  9. Firefighters battling deadly California wildfires reach ...

    www.aol.com/firefighters-battling-deadly...

    The Eaton Fire, located north of Pasadena, ended up burning over 14,000 acres. It destroyed nearly 10,000 homes, businesses , schools and other structures and caused at least 17 confirmed deaths.