| Date: | 2021-08-31 |
| Time: | 1938:59 |
| Geyser: | Old Faithful |
| Webcam: | Yes |
| Initial: | No |
| Long/Short: | Long |
| Duration: | >3m39s |
| Standardized Duration: | >3m 39s |
| Time Entered: | 2021-08-31 19:39:25 |
| Time Updated: | 2021-08-31 19:45:19 |
| Time Uploaded: | 2021-08-31 19:45:17 |
| Entrant: | JarnoO |
| Observer: | |
| Submitted to: | Geysertimes.org |
| Comments: | prediction GT 1938; had at least 25-30s until end |