In the 1930s, workers bored a 13-mile tunnel beneath Mt. San Jacinto. Here's a look inside the engineering feat that carries ...

Where once they were a rarity among the manicured lawns of Southern California, now they are a staple in yards and office ...

Arid slopes of the inland portions of southern California’s mountains support pinyon-juniper woodlands, dry chaparral, sagebrush, and desert scrub communities. These vegetation types occur in open ...