Metallurgical work validates processing approach for railway tailings; construction progressing ahead of schedule and ...

The state is in the middle of a large region of the US that may be hiding geologic hydrogen - a gas that burns without producing carbon dioxide, like other fossil fuels.

Planning a trip to Arizona? Here are 12 must-see attractions, from the Grand Canyon to Monument Valley, and other ...

This is enough time to walk a portion of the Rim Trail, visit the historic El Tovar Hotel, browse the Hopi House gift shop for authentic Native American crafts, or just sit and stare at the ...

Arizona doesn't usually bring cool lakes and breezy hiking trails to mind but this off-the-grid site is the perfect getaway ...

Towering structures must be able to bend and sway when subjected to the forces of wind and ground movement, or they will ...

Dobbins Lookout in Phoenix offers the ultimate reset button – a vista so expansive it makes your daily troubles look like ants from 2,330 feet up. There’s an indescribable magic that happens when you ...

Karl Karlstrom, a geologist recently retired from the University of New Mexico, grew up in Flagstaff, Arizona. Grand Canyon ...

Arizona's water authority wants to place groundwater rules in a basin where Saudi-owned Fondomonte grows thousands of acres ...

Located 18 miles south of Tucson near the Sierrita Mountains and organized in 1877, the Pima Mining District had humble beginnings with several small mining camps. Deposits of copper, silver, lead, ...

PHOENIX (AP) — Democratic Arizona Gov. Katie Hobbs launched her reelection bid Wednesday, outlining a practical rather than confrontational approach to campaigning in a swing state where she will need ...

AstraZeneca and Daiichi Sankyo’s Datroway has become the first cancer drug to show an overall survival benefit against chemotherapy for certain patients with a particularly aggressive form of breast ...