WADI
| Date | Clue |
|---|---|
| 2024-05-28 | Dry streambed |
| 2011-09-25 | Often-parched gully |
| 2009-11-01 | Desert stream |
| 2007-05-23 | Dry riverbed |
| 2005-04-17 | Dry riverbed |
| 2003-11-26 | Gully that's usually dry |
| 2003-07-28 | Dry riverbed |
| 2002-05-02 | Dry wash |
| 2000-04-19 | African stream |
| 1999-01-18 | Desert stream |
| 1997-10-28 | Desert streambed |
| 1996-07-22 | Desert stream |
| 1996-03-26 | Desert streambed |
| 1994-01-27 | Arroyo |