Sub-freezing temperatures as low as 30 possible. Lower Columbia Basin of Oregon and Washington, Foothills of the Northern Blue Mountains of Oregon, Kittitas Valley, Yakima Valley, and Foothills of the ...

Warm air rises, but it also expands because air pressure decreases with height. The latter effect wins out and air becomes ...

Using data compiled from single earthquakes across the world, Christie Rowe of the Nevada Seismological Laboratory at the University of Nevada, Reno and Alex Hatem of the U.S. Geological Survey sought ...

Celebrate Easter and the spring season with food, music, candy and the Easter Bunny at one of these Easter egg hunts across ...

This story is part of the Forty for Forty Project: 40 outings in 40 weeks to celebrate the 40th anniversary of th.

Did you know Arizona's wine region is just waiting to be explored? There's plenty to know about this unique spot.

Depleted groundwater threatens communities, agriculture, and ecosystems in California's Central Valley, which produces much ...

Looking to treat yourself while saving some money? Here are some of the best deals and freebies around the Valley this week, April 14-20.

You can't go wrong with either of these hikes in Arizona, whether you choose the South Kaibab Trail or the Sun Valley Mine ...

National organization cites unchecked development and a lack of regional water-supply planning as causes for concern.

Quandary Peak’s East Ridge is magnificent and one of the easier routes to a Colorado 14er, which makes it justifiably popular ...

Tucked between the blue-hazed peaks of the Shenandoah Valley waits a town where dogwoods bloom above centuries-old sidewalks, ...