| Winnemucca Formation | |
| Type: | Geologic formation |
| Age: | Triassic period |
| Namedfor: | Chief Winnemucca (Paiute leader) |
| Region: | Northwestern Nevada |
| Country: | United States |
The Winnemucca Formation is an Triassic period geologic formation in northwestern Nevada, USA. It is found in the Sonoma Range in Humboldt County.[1]
It preserves fossils dating back to the Triassic period of the Mesozoic Era.