| Date: | 2025-08-13 |
| Time: | 1447 |
| Geyser: | Old Faithful |
| Webcam: | No |
| Initial: | No |
| Long/Short: | Long |
| Duration: | |
| Time Entered: | 2025-08-13 20:49:54 |
| Time Uploaded: | 2025-08-13 20:49:54 |
| Entrant: | JSJ |
| Observer: | James St. John |
| Submitted to: | Geysertimes.org |
| Comments: | Eruption from 1447 to 1451. |