REDIG
| Date | Clue |
|---|---|
| 2010-06-16 | Make even deeper |
| 2007-02-26 | Excavate again |
| 2006-11-22 | Make even deeper |
| 2006-09-07 | Fix, as a trench |
| 2005-12-28 | Make even deeper |
| 2005-03-13 | Make a new excavation |
| 1999-10-23 | Make a new hole |
| 1999-01-24 | Do further archeological work |
| 1997-10-12 | Use the spade again |