| Date: | 2025-04-10 |
| Time: | 1153 |
| Geyser: | Old Faithful |
| Webcam: | Yes |
| Initial: | No |
| Long/Short: | Long |
| Duration: | 3m 45s |
| Standardized Duration: | 3m 45s |
| Time Entered: | 2025-04-10 11:53:58 |
| Time Updated: | 2025-04-10 11:58:40 |
| Time Uploaded: | 2025-04-10 11:58:40 |
| Entrant: | novakg |
| Observer: | Gary Novak |
| Submitted to: | Geysertimes.org |
| Comments: | GT: 1151 Very sudden, explosive start. |