The Arizona Geological Survey has just published a new report: Directory of Arizona’s Active Mines – FY2021. More than 400 mines, including nearly 300 aggregate facilities and 27 metallic mines/development projects were active in 2021. Other industrial mines (e.g. gypsum, cinders) make up the remainder.
See links to the full report and plates: http://repository.azgs.az.gov/uri_gin/azgs/dlio/2008