| Ref No | GSL/SG/GIG |
| Title | Geological Information Group |
| Date | 1972-1994 |
| Level | SubSeries |
| Format | Document |
| Access Conditions | Access is by appointment only. Please contact the Archivist for further information. |
| Language | English |
| ArchNote | Description by Caroline Lam |
| CreatorName | Geological Information Group | 1971- |