AZGS' Open-File Report 'Directory of Active Mines in Arizona: FY2021' documents 433 active, full-time mines or development projects in the state of Arizona. Mines come in all shapes and sizes, from small sand and gravel operations providing materials for local road maintenance and construction to the large open-pit copper mines, such as Morenci and Ray.
"A Presidential executive order on a federal strategy to ensure secure and reliable supplies of critical minerals, issued December 20, 2017, includes the assertion that the USA is limited by a lack of comprehensive, machine-readable data concerning topographical, geological, and geophysical surveys."