They were and still are. Copper is what is mined, but Gold, Silver and Molybdenum are also extracted during the process as by-products.
Arizona was the largest producer of Copper in the US in 2007.
Arizona
In southern Arizona.
Uranium is mined in Arizona.
silver, copper, etc.
Gold, silver, and copper are mined in Utah and zinc is a by-product, so yes it is mined in Utah.
Silver is mined in the ground in the same way that gold and copper is.
Three metals that are mined in Argentina are gold, silver, and copper.
About 60% of newly mined copper in the US comes from Arizona, making it the leading copper-producing state in the country.
copper, zinc, gold, silver, and lead.
The main items produced in Arizona include mined products, electronics, and agricultural items. Copper is the main mined product from Arizona. Agricultural items include lettuce, cotton, and hay.
Copper and coal are the main resources mined in BC. Zinc, gold, silver, nickel, and iron are also mined there. Yukon mines lead, zinc, silver, gold, asbestos and copper.