| Date: | 2021-08-20 |
| Time: | 1222:00 |
| Geyser: | Old Faithful |
| Webcam: | Yes |
| Initial: | No |
| Long/Short: | Long |
| Duration: | >4m03s |
| Standardized Duration: | >4m 3s |
| Time Entered: | 2021-08-20 12:23:35 |
| Time Updated: | 2021-08-20 12:28:57 |
| Time Uploaded: | 2021-08-20 12:28:56 |
| Entrant: | JarnoO |
| Observer: | |
| Submitted to: | Geysertimes.org |
| Comments: | prediction GT 1212 | NPS 1219 |