A 9,500-year-old funeral pyre uncovered in a rock shelter in northern Malawi is forcing archaeologists to rethink when and ...
Located 20 miles south of Tucson on the eastern slope of the Sierrita Mountains, the Twin Buttes Mining district dates back to the late 1800s. That’s when four prospectors gophered surface outcrops of ...
Ajo, in western Pima County 125 miles west of Tucson, has one of Arizona’s best-known porphyry copper deposits. It enticed small mining operations by the San Francisco syndicate known as the American ...