| Date: | 2021-09-22 |
| Time: | 1119 |
| Geyser: | Grotto |
| Webcam: | No |
| Initial: | No |
| Major/Minor: | N/A |
| Duration: | 1h34m |
| Standardized Duration: | 1h 34m |
| Time Entered: | 2021-09-22 11:20:57 |
| Time Updated: | 2021-09-22 12:54:53 |
| Time Uploaded: | 2021-09-22 12:54:55 |
| Entrant: | Graham |
| Observer: | |
| Submitted to: | GeyserTimes for Android |
| Comments: | Grotto Fountain tried to erupt but failed. End 1254 just after Rocket. |