Chumash Painted Cave State Historic Park

Chumash Painted Cave State Historic Park is preserving a small sandstone cave adorned with rock art attributed to the Chumash people. The smooth and irregularly shaped shallow sandstone cave contains numerous drawings apparently depicting the Chumash cosmology and other subjects created in mineral pigments and other media over a long period ranging from about 200 up to possibly 1000 years or more.
-from Wikipedia