I had been craving one of those quiet Arizona escapes that feels a little harder to reach and a lot more rewarding because of it. There is something unforgettable about starting the day out on the ...

Trading gems, minerals, fossils and meteorites can be fraught with controversy and ethical ambiguity. But is the answer to ...

The project to expand a mine producing manganese and zinc is expected to receive final approval by this summer.

Tucked away in the remote northwestern corner of Arizona, near the tiny community of Littlefield, Toroweap Overlook offers ...

From desert overlooks to charming small towns, these underrated Arizona spots offer out-of-towners a side of the state that ...

A potential new mineral on Mars forms when iron sulfates are heated above 100°C. Data from Valles Marineris regions suggest ...

ASU and Freeport are building robots and sensors to speed copper sorting and shrink processing waste in Arizona.

Siphon Draw Trail is the park’s star attraction. This path climbs up toward a rock formation called the Flatiron. The trail gets steep and your legs will complain, but your eyes will thank you. Valley ...

Skip Tucson’s bustle for a high desert town with magical mountain views.

The Seventy-Nine Mine, located 7ƒ miles north of Hayden in southern Gila County, was discovered in 1879 by Mike and Pat O’Brien. Christened after the year of its discovery and part of the Banner ...

While Southern Arizona is known for its porphyry copper deposits, Northern Arizona is better known for its nonmetallic commodities, including basalt, helium, potash and carbon dioxide (CO2). More than ...

More than 50,000 years ago, a meteor hit Earth and formed what we now call Meteor Crater in northern Arizona. But new ...