Search SEDIS
| Data sets | Publications | Expeditions | Thesaurus |
Montesano Formation  | |
|---|---|
| BT | Chronostratigraphic Units |
| .Phanerozoic | |
| ..Cenozoic | |
| ...Neogene | |
| ....Miocene | |
| .....upper Miocene | |
| ......Montesano Formation | |
| RT | Washington |
| SN | Largely massive coarse-grained light-brown sandstones, with many intercalated lenses of conglomerate and grit; shales subordinate in lower part but common in upper part. SW and NW Washington. |