PEATS
| Date | Clue |
|---|---|
| 2015-01-18 | Bog accumulations |
| 2011-02-10 | Fuel sources |
| 2004-11-25 | Fossil fuel blocks |
| 2004-01-26 | Fossil fuel blocks |
| 1996-11-09 | Fuel sources |
| Date | Clue |
|---|---|
| 2015-01-18 | Bog accumulations |
| 2011-02-10 | Fuel sources |
| 2004-11-25 | Fossil fuel blocks |
| 2004-01-26 | Fossil fuel blocks |
| 1996-11-09 | Fuel sources |