USAWinnemucca Lake is home to several petroglyphs dated to between 14,800 and 10,500 years ago. Either date would make them the oldest known petroglyphs found in North America.
Winnemucca Lake Petroglyphs
| Type | Petroglyphs |
|---|---|
| Period | < 4500 BC |
| Country | USA |
| Coordinates | 40.1110° N, 119.3410° W |