The Arizona Department of Environmental Quality said the rules create a regulatory framework ensuring safe and reliable ...

From Lowell Observatory to Kitt Peak to Mount Graham, here are the 11 best planetariums and observatories in Arizona and ...

Two Arizona national parks were named among the best parks for seeing wildlife like mountain lions, bison and birds. Here's ...

After a devastating wildfire, endangered Mount Graham red squirrel populations recovered through joint efforts from four ...

Arizona promises outdoorsy travelers endless adventure opportunities. One of those offerings features "sky islands" in an ...

For the thrill-seekers and experienced hikers, we've found some of the most dangerous trails in Arizona and outlined how to ...

Arizona is in the midst of a water reckoning. The state’s long-running illusion of endless growth — more data centers, more developments, more strawberries in the desert — collides daily ...

Buford, a 6-year-old Anatolian Pyrenees, found a missing 2-year-old boy who had wandered 7 miles from his Arizona home and spent the night in the desert, the dog’s owner ... Anatolian Pyrenees are ...

Grass fires burn far more American homes each year than forest fires. In southern Arizona, communities fight fires that never touch a tree.

Dust devils are usually weak and relatively harmless, though they can fling lawn furniture and umbrellas around.