| Date: | 2021-05-16 |
| Time: | 1659 |
| Geyser: | Grotto Fountain |
| Webcam: | No |
| Initial: | No |
| Major/Minor: | N/A |
| Duration: | 16m |
| Standardized Duration: | 16m |
| Time Entered: | 2021-05-16 17:02:57 |
| Time Updated: | 2021-05-16 17:34:38 |
| Time Uploaded: | 2021-05-16 17:34:39 |
| Entrant: | cb |
| Observer: | Russell, Todd, Darcie Bill and I |
| Submitted to: | GeyserTimes for Android |
| Comments: | Grotto start @ 1709. Beautifully Tall eruption with rainbows! End 1715. some tall (2 - 4') blips out of South Grotto Fountain & small blips from Startling. |