| Date: | 2009-05-31 |
| Time: | 0000 A |
| Geyser: | Fan and Mortar |
| Webcam: | No |
| Initial: | No |
| Major/Minor: | N/A |
| Duration: | |
| Time Entered: | 2013-06-05 23:11:53 |
| Time Updated: | 2014-10-09 00:22:54 |
| Time Uploaded: | 2014-10-09 00:22:54 |
| Entrant: | Tara |
| Observer: | |
| Submitted to: | Geysertimes.org |
| Comments: | Erupted overnight May 30-31. Previous eruption was sometime between April 15 and April 25. See notes on February 2, 12, 20, and 27, March 6, 13, 17, and 31, and April 15 and 25 for information about marker replacements. |