Welcome to California Cavern State Historic Landmark in Mountain Ranch, CA, USA. This incredible site is not only one of the earliest officially recorded caves in the Mother Lode region of California but also holds the distinction of being the states longest cavern system. Once called Mammoth Cave, it was later renamed to reflect its significance and importance as a historic landmark.

As you enter the cavern, youll be greeted by the cool air and the sound of water dripping from stalactites hanging overhead. The extensive cavern and passageway systems are unique compared to other caves in the area, providing an engaging and immersive experience for visitors.

The park also offers picnic benches where you can relax after your journey through these ancient, subterranean wonders. Unlike some of its more commercialized neighbors like Moaning Caverns, California Cavern retains a sense of authenticity and a deeper connection to the history and geology of the area.

So come with us as we embark on an adventure that transports you through time and space, exploring the rich history and breathtaking beauty of California Cavern State Historic Landmark in Mountain Ranch, CA, USA.