Cebrian River
| Site: | Sheercliff quarry |
| Landform: |  Plains |
| Difficulty: | 5 |
| Risk Level: | |
| Skills: |  Extracting - 10 |
Task groups
Extraction
| Ratio | Task | Result | Difficulty | Duration | Components |
| 100% |  Extract clay | | 1 | 00:01:40 | |
| 100% |  Extract marl |  | 2 | 00:02:30 | |
| 100% |  Extract slate |  | 3 | 00:05:00 |