Explorers recently mapped a cave system approximately 16 miles in length running adjacent to a river, revealing massive ...

Moaning Cavern in nearby Vallecito features the largest single cave chamber in California, where you can actually rappel 165 feet to the bottom if walking down the spiral staircase isn’t adventurous ...

Looking for things to do in California? Here are 10 ways to make the most of your stay, each one vetted by us during a recent ...

In light of these challenges, Friends of Mammoth Cave is making an appeal for public support. They stress that even modest ...

Hidden River Cave in Horse Cave was closed to the public for decades until a local effort to clean it out began.

Imagine a world where enormous woolly mammoths still roamed the frozen tundra, their long tusks sweeping through the snow as ...