Search SEDIS
| Data sets | Publications | Expeditions | Thesaurus |
Western Interior Seaway  | |
|---|---|
| BT | North America |
| .Western Interior | |
| ..Western Interior Seaway | |
| RT | Alberta |
| Canada | |
| United States | |
| Idaho | |
| Utah | |
| Wyoming | |
| Montana | |
| North American Cordillera | |
| British Columbia | |
| Canadian Cordillera | |
| SN | Indexed with countries, states and/or provinces as applicable. Added to Thesaurus in 1989. |