| Date: | 2018-09-17 |
| Time: | 1655 |
| Geyser: | Giant Hot Period |
| Webcam: | No |
| Initial: | No |
| Major/Minor: | Major |
| Duration: | |
| Time Entered: | 2018-09-17 16:56:14 |
| Time Updated: | 2018-09-17 18:16:49 |
| Time Uploaded: | 2018-09-17 18:16:51 |
| Entrant: | Graham |
| Observer: | |
| Submitted to: | GeyserTimes for Android |
| Comments: | SW vents, Feather, Cave then FS. Mastiff came up slowly and dropped a little before recovering and surging 4 to 5 feet. When Mastiff dropped Feather weakened but came back strong with Posthole. Giant surged and erupted. Rust and Slit were also active. |