| Date: | 2021-08-13 |
| Time: | 1619:23 |
| Geyser: | Old Faithful |
| Webcam: | Yes |
| Initial: | No |
| Long/Short: | Long |
| Duration: | >3m30s |
| Standardized Duration: | >3m 30s |
| Time Entered: | 2021-08-13 16:19:47 |
| Time Updated: | 2021-08-13 16:25:22 |
| Time Uploaded: | 2021-08-13 16:25:22 |
| Entrant: | JarnoO |
| Observer: | |
| Submitted to: | Geysertimes.org |
| Comments: | prediction GT & NPS 1618; duration within 10-20s of end |