| Date: | 2021-04-16 |
| Time: | 1939:13 |
| Geyser: | Old Faithful |
| Webcam: | Yes |
| Initial: | No |
| Long/Short: | Long |
| Duration: | 4m31s |
| Standardized Duration: | 4m 31s |
| Time Entered: | 2021-04-16 19:39:59 |
| Time Updated: | 2021-04-17 09:59:55 |
| Time Uploaded: | 2021-04-17 09:59:57 |
| Entrant: | JarnoO |
| Observer: | |
| Submitted to: | Geysertimes.org |
| Comments: | 1939:13; prediction GT 1939 |