Search SEDIS
| Data sets | Publications | Expeditions | Thesaurus |
Swauk Formation  | |
|---|---|
| BT | Chronostratigraphic Units |
| .Phanerozoic | |
| ..Cenozoic | |
| ...Paleogene | |
| ....Eocene | |
| .....Swauk Formation | |
| RT | Washington |
| SN | Unconformably overlies metamorphic basement of unknown age. Central and N central Washington. |