Search SEDIS
| Data sets | Publications | Expeditions | Thesaurus |
Astrakhan Arch  | |
|---|---|
| BT | Commonwealth of Independent States |
| .Astrakhan Arch | |
| RT | Russian Federation |
| Kazakhstan | |
| Astrakhan Russian Federation | |
| Caspian Depression | |
| Volga region | |
| SN | W Caspian Depression, near mouth of Volga River. Indexed with former Soviet republics as applicable. Added to Thesaurus in 1985. |