| Date: | 2021-08-22 |
| Time: | 0810 |
| Geyser: | Grotto Fountain |
| Webcam: | No |
| Initial: | No |
| Major/Minor: | N/A |
| Duration: | 27m 24s |
| Standardized Duration: | 27m 24s |
| Time Entered: | 2021-08-22 08:40:41 |
| Time Uploaded: | 2021-08-22 08:40:43 |
| Entrant: | William |
| Observer: | Linda, HK, Dan, Graham and I |
| Submitted to: | GeyserTimes for Android |
| Comments: | VERY nice eruption with many bursts over the trees! |