| Date: | 2021-04-23 |
| Time: | 2030 |
| Geyser: | Grotto Fountain |
| Webcam: | No |
| Initial: | No |
| Major/Minor: | N/A |
| Duration: | 27m 38s |
| Standardized Duration: | 27m 38s |
| Time Entered: | 2021-04-23 20:32:14 |
| Time Updated: | 2021-04-23 20:58:12 |
| Time Uploaded: | 2021-04-23 20:58:16 |
| Entrant: | RMichaels |
| Observer: | |
| Submitted to: | GeyserTimes for Android |
| Comments: | Had some steam-driven bursts that may have exceeded 40 ft. |