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Preliminary evaluation of mineral resources of the Santa Cruz Valley National Heritage area

      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.

The U.S. Geological Survey’s Commodity Report – 2019: Arizona’s role in U.S. mineral production
The US Geological Survey just released their 2018 report on U.S and global mineral commodities. Arizona is No# 1 in copper production in the U.S.
Major Zn-Pb-Ag deposit of Santa Cruz County, SE Arizona
The Taylor Zn-Pb-Ag deposit represents a world-class mineral find.
Making US Bureau of Mines’ Reports Accessible at AZGS Document Repository

For 85 years, ending in 1996, the US Bureau of Mines (USBM) drafted and released 1000s of seminal reports on mineral resources and mining technology in the United States. The contents of those reports still have value. Unfortunately, access to USBM reports frequently proves difficult.

Fast tracking expansion of America’s critical mineral production
"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."
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