| Date: | 2007-09-28 |
| Time: | 2345 |
| Geyser: | Giant |
| Webcam: | No |
| Initial: | No |
| Major/Minor: | N/A |
| Duration: | |
| Time Entered: | 2013-01-19 01:44:50 |
| Time Uploaded: | 2014-09-23 20:47:00 |
| Entrant: | Tara |
| Observer: | David DeWitt |
| Submitted to: | Geysertimes.org |
| Comments: | Eruption occurred on a marathon recovery. Hot period seen in progress. Mastiff erupted at about 2340. |