| Date: | 2021-07-30 |
| Time: | 1711:30 |
| Geyser: | Old Faithful |
| Webcam: | Yes |
| Initial: | No |
| Long/Short: | Long |
| Duration: | >4m13s |
| Standardized Duration: | >4m 13s |
| Time Entered: | 2021-07-30 17:12:18 |
| Time Updated: | 2021-07-30 17:18:50 |
| Time Uploaded: | 2021-07-30 17:18:51 |
| Entrant: | JarnoO |
| Observer: | |
| Submitted to: | Geysertimes.org |
| Comments: | prediction GT & NPS 1709 |