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Evaluating Arizona’s geologic setting, mineral resources, and geologic hazards.
Small earthquake swarm detected near Roosevelt, Arizona: Feb. 25, 2022
28 February 2022
Small swarm of earthquakes occur near Theodore Roosevelt Lake of central Arizona in February 2022.
Arizona's Christmas Mine 1880s to 1982
Arizona Mining Review
Minerals & Mining
24 March 2021
A history of the Christmas Mine, Gila County, Arizona
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