In FY 2019, there were 380 active, full-time mines or development projects in the state of Arizona (Richardson and others, 2019). The new Directory of Active Mines in Arizona: FY 2019, a joint product of the Arizona Mine Inspector’s Office and the Arizona Geological Survey, characterizes those active mines.
In March 2019, President Donald Trump signed a public lands bill creating the Santa Cruz Valley National Heritage area encompassing parts of Santa Cruz and Pima Counties. This followed more than a decade of effort on the part of U.S.
Hudbay hurdles final obstacle to initiate their mine plan operation at the Rosemont Copper Mine south of Tucson, Arizona.