Whether it's 100 degrees or below-freezing, these caverns in the Sierra Nevada foothills stay at a constant temperature for ...

The road to Mitchell Caverns was paved but rough, and I slowed my Prius to a crawl to avoid constant giant potholes and washouts. Luckily, I was the only car on Essex Road that Saturday morning. It ...

The Mitchell Caverns are not as large as those at Carlsbad, New Mexico, or as well known — but are local, every bit as dramatic, and come complete with a history made for movies. I had no idea what to ...

VALLECITO, Calif.VALLECITO, Calif. — Oak trees and vineyards dot the rolling hills of Calaveras County, tucked away between Yosemite National Park and Lake Tahoe, a place with four distinct seasons ...

For you adventurous souls who like to get your sightseeing thrills underground, California has a wealth of caves open to the public — offering everything from walking tours to mud-caked spelunking.

With high temperatures continuing for the rest of summer, plans typically include a day at the beach or lake. But, some wise travelers are taking their weekend excursion underground to escape the heat ...

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