| Date: | 2018-09-07 |
| Time: | 1448 |
| Geyser: | Giant Hot Period |
| Webcam: | No |
| Initial: | No |
| Major/Minor: | N/A |
| Duration: | 1m12s |
| Standardized Duration: | 1m 12s |
| Time Entered: | 2018-09-07 15:06:55 |
| Time Updated: | 2018-09-07 15:08:04 |
| Time Uploaded: | 2019-05-13 21:35:55 |
| Entrant: | RLJones |
| Observer: | Allan F. and Heinrich C |
| Submitted to: | GeyserTimes for Android |
| Comments: | Bijou off 1442.49, SW vents on 1446-30, Feather on 1448.53 start of hot period, Feather off 1450.05 for a 1m12s hot period. Mastiff was nearly full but never overflowed and was generally a smooth flat surface |