Search SEDIS
| Data sets | Publications | Expeditions | Thesaurus |
Old Crow Tephra  | |
|---|---|
| BT | Chronostratigraphic Units |
| .Phanerozoic | |
| ..Cenozoic | |
| ...Quarternary | |
| ....Pleistocene | |
| .....Upper Pleistocene | |
| ......Old Crow Tephra | |
| RT | Alaska |
| Yukon Territory | |
| SN | Upper Pleistocene. Alaska and Yukon Territory. Added to Thesaurus in 1993. |