North America's Oldest Petroglyphs Discovered
The rock carvings on the Pyramid Lake Indian Reser... ...his climate research that the dry area where the petroglyphs are located was once a lake, and that the white c... ...were submerged in water, which suggested that the petroglyphs may be older than 11,000 years"And I did know, at... ...t these were proba...
https://www.neatorama.com/2013/08/17/North-Americas-Oldest-Petroglyphs-Discovered/
