| Date: | 2021-04-30 |
| Time: | 1912:34 |
| Geyser: | Old Faithful |
| Webcam: | Yes |
| Initial: | No |
| Long/Short: | Long |
| Duration: | >3m44s |
| Standardized Duration: | >3m 44s |
| Time Entered: | 2021-04-30 19:13:05 |
| Time Updated: | 2021-04-30 19:23:22 |
| Time Uploaded: | 2021-04-30 19:23:21 |
| Entrant: | JarnoO |
| Observer: | |
| Submitted to: | Geysertimes.org |
| Comments: | prediction GT 1917 |