| Date: | 2021-07-31 |
| Time: | 1431:40 |
| Geyser: | Old Faithful |
| Webcam: | Yes |
| Initial: | No |
| Long/Short: | Long |
| Duration: | 3m50s |
| Standardized Duration: | 3m 50s |
| Time Entered: | 2021-07-31 14:32:15 |
| Time Updated: | 2021-07-31 14:39:13 |
| Time Uploaded: | 2021-07-31 14:39:13 |
| Entrant: | JarnoO |
| Observer: | |
| Submitted to: | Geysertimes.org |
| Comments: | prediction GT & NPS 1427 |