Some say these Petroglyphs are from 3,000 -12,000 years old.
Made by the Mono, The Mono are a Native American people who traditionally live in the central Sierra Nevada, the Eastern Sierra (generally south of Bridgeport), the Mono Basin, and adjacent areas of the Great Basin. They are often grouped under the historical label "Paiute" together with the Northern Paiute and Southern Paiute - but these three groups, although related within the Numic group of Uto-Aztecan languages, do not form a single, unique, unified group of Great Basin tribes.