The aircraft collided in a remote portion of the Yuma Training Range Complex on the California side of the Chocolate Mountains very close to the Arizona border, Ms. Dooley said.

WSJ: Seven Marines Die as Helicopters Collide

In October 2012, The Defenders of Wildlife, Center for Biological Diversity, and the Sierra Club, filed suit in the Kern County Superior Court in Bakersfield, California to reopen an environmental review of a 100-turbine North Sky River wind project and a smaller adjacent Jawbone project in the mountains north of the Mojave Desert over threats to California condors.

FORBES: Environmental Groups Strongly Endorse "None Of The Above" Energy Plans

The vertigo-inducing route into the mountains above Malibu felt like the Grande Corniche of Southern California.

CNN: Staying in a stranger's home: A field test

To promote and celebrate this space, and to support the Conservancy, the Irvine Company today released Southern California Coastal Mountains to the Sea: A Celebration of Open Space on the Historic Irvine Ranch.

FORBES: Billionaire Donald Bren Releases Book Promoting The Irvine Ranch

Economically feasible power production sites are principally located west of the Rocky Mountains, and only California, Hawaii, Nevada and Utah currently have operating plants.

FORBES: Renewable Energy Delusions: Getting A Real Grip On Alternatives

Grass Valley, California (CNN) -- In the foothills of California's Sierra Nevada mountains, artists are partnering with doctors and scientists to create life-changing products.

CNN: Hearts of glass: Where medical science meets art

CAMARILLO, Calif. (AP) Investigators have ruled out arson as the cause of a huge Southern California wildfire that was 75 percent contained Sunday after burning through coastal mountains and threatening thousands of homes.

NPR: Cause Of California Wildfire Appears Accidental

If they want to reverse the property tax numbers, cities could try to rush a housing recovery or push through the mountainous political battles of raising rates. (In California, they would need to move mountains.) Or they could just borrow the money.

FORBES: The Still Shrinking Local Governments