| Date: | 2006-08-18 |
| Time: | 0759 |
| Geyser: | Giant Hot Period |
| Webcam: | No |
| Initial: | No |
| Major/Minor: | N/A |
| Duration: | 8m25s |
| Standardized Duration: | 8m 25s |
| Time Entered: | 2015-05-05 02:33:14 |
| Time Uploaded: | 2019-05-13 21:39:02 |
| Entrant: | Tara |
| Observer: | |
| Submitted to: | Geysertimes.org |
| Comments: | Mastiff surged 5 feet |