Where are the largest copper deposits in US?

- Located in the Oquirrh Mountains, just 20 miles southwest of Salt Lake City, Utah.

- Estimated to hold over 17 million tons of copper, making it the largest open-pit copper mine in the world.

2. Morenci Mine (Arizona)

- Located in Greenlee County, Arizona, about 100 miles northeast of Tucson.

- Comprised of four open pits and an underground mine, and produces around 750,000 tons of copper annually.

3. Butte Mining District (Montana)

- Located in Butte, Montana, and has been in operation for over a century.

- Known for its rich copper deposits, and has produced over 10 million tons of copper to date.

4. San Manuel Mine (Arizona)

- Located in Pinal County, Arizona, about 100 miles northeast of Tucson.

- One of the largest copper mines in Arizona, and produces around 500,000 tons of copper annually.

5. Climax Mine (Colorado)

- Located in the Sawatch Range of the Rocky Mountains, near Leadville, Colorado.

- Known for its large molybdenum deposits, but also produces significant quantities of copper.