| Date: | 2021-06-16 |
| Time: | 2107:44 |
| Geyser: | Old Faithful |
| Webcam: | Yes |
| Initial: | No |
| Long/Short: | Long |
| Duration: | 3m 6s |
| Standardized Duration: | 3m 6s |
| Time Entered: | 2021-06-16 21:08:35 |
| Time Updated: | 2021-06-16 21:16:40 |
| Time Uploaded: | 2021-06-16 21:16:40 |
| Entrant: | SantaFe108 |
| Observer: | |
| Submitted to: | Geysertimes.org |
| Comments: | Very long preplay >10 minutes long, causing the eruption to be delayed. Very explosive and tall start. |