| Date: | 2021-07-31 |
| Time: | 1550 |
| Geyser: | Grotto Fountain |
| Webcam: | No |
| Initial: | No |
| Major/Minor: | N/A |
| Duration: | 10m |
| Standardized Duration: | 10m |
| Time Entered: | 2021-07-31 16:09:11 |
| Time Uploaded: | 2021-07-31 16:09:14 |
| Entrant: | deanl |
| Observer: | Chris, Dean, and Kyle |
| Submitted to: | GeyserTimes for Android |
| Comments: | We only considered it an eruption after it continued into Grotto; it never reached more than 1/2 its usual height. |