| Date: | 2021-07-31 |
| Time: | 1250:53 |
| Geyser: | Old Faithful |
| Webcam: | Yes |
| Initial: | No |
| Long/Short: | Long |
| Duration: | 4m28s |
| Standardized Duration: | 4m 28s |
| Time Entered: | 2021-07-31 12:51:35 |
| Time Updated: | 2021-07-31 12:58:49 |
| Time Uploaded: | 2021-07-31 12:58:49 |
| Entrant: | JarnoO |
| Observer: | |
| Submitted to: | Geysertimes.org |
| Comments: | prediction GT 1301 | NPS 1307 |