| Dalles Formation | |
|---|---|
| Stratigraphic range: Neogene | |
| Type | Formation |
| Location | |
| Region | Wasco County, Oregon |
| Country |  United States |
The Dalles Formation is a geologic formation in Oregon. It preserves fossils dating back to the Neogene period.
| Dalles Formation | |
|---|---|
| Stratigraphic range: Neogene | |
| Type | Formation |
| Location | |
| Region | Wasco County, Oregon |
| Country | United States |
The Dalles Formation is a geologic formation in Oregon. It preserves fossils dating back to the Neogene period.