Mining is still happening in the following U.S. States: Alabama, Alaska, Arizona, California, Colorado, Connecticut, Florida, Georgia, Idaho, Illinois, Indiana, Kentucky, Maine, Maryland, Michigan, Minnesota, Missouri, Montana, Nebraska, Nevada, New Hampshire, New Jersey, New Mexico, New York, North Carolina, North Dakota, Ohio, Oklahoma, Oregon, Pennsylvania, South Carolina, South Dakota, Tenessee, Texas, Utah, Vermont, Virginia, Washington, West Virginia, Wisconsin and Wyoming.
The main resources that are mined in the U.S. are coal, copper, gold, silver, uranium and zinc.
By value, the most important non-fuel mineral products mined in the US are crushed stone ($11 billion per year), copper ($6.2 billion), sand and gravel ($6.2 billion), gold ($6.4 billion), molybdenum, phosphate rock, iron ore, lime, and clays. Of those, the US is self-sufficient (no net imports) for only sand and gravel, gold, molybdenum, and clays. The US imports 85% of its uranium, and 24%-40% of its copper.
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