| Date: | 2015-08-16 |
| Time: | 1139 |
| Geyser: | Old Faithful |
| Webcam: | No |
| Initial: | No |
| Long/Short: | N/A |
| Duration: | ~4m |
| Standardized Duration: | ~4m |
| Time Entered: | 2015-08-17 18:07:42 |
| Time Uploaded: | 2019-05-13 21:39:11 |
| Entrant: | JSJ |
| Observer: | James St. John |
| Submitted to: | Geysertimes.org |
| Comments: | Eruption from 1139 to 1143. |