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NEW NPS Geologic Resources of Tonto National Monument
NPS releases a 100-page, illustrated report detailing the geologic resources of the Tonto National Monument of central Arizona.
Geology & Mineral Resources of the Santa Catalina Mountains, SE Arizona
A 145-page monograph on the geology and mineral resources of the Santa Catalina Mtns. by Dr. Eric Force (1997).
Arizona’s Proterozoic Geology Revealed: Geologic maps of Phillip Anderson

Phil Anderson (Ph.D., University of Arizona) had a genius for mapping and interpreting the Proterozoic geology, tectonics, and mineral deposits of the Southwest. Unfortunately, his mapping was never made public, until now.

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