| Date: | 2021-07-29 |
| Time: | 1441:04 |
| Geyser: | Old Faithful |
| Webcam: | Yes |
| Initial: | No |
| Long/Short: | Long |
| Duration: | >3m17s |
| Standardized Duration: | >3m 17s |
| Time Entered: | 2021-07-29 14:41:45 |
| Time Updated: | 2021-07-29 14:48:56 |
| Time Uploaded: | 2021-07-29 14:48:57 |
| Entrant: | JarnoO |
| Observer: | |
| Submitted to: | Geysertimes.org |
| Comments: | prediction GT 1439; cam dropped out but appeared it was headed for long |