| Date: | 2025-06-16 |
| Time: | 1633 |
| Geyser: | Inverted |
| Webcam: | No |
| Initial: | No |
| Major/Minor: | N/A |
| Duration: | 40s |
| Standardized Duration: | 40s |
| Time Entered: | 2025-06-22 18:51:07 |
| Time Uploaded: | 2025-06-22 18:51:11 |
| Entrant: | Siegmund |
| Observer: | |
| Submitted to: | Geysertimes.org |
| Comments: | Or whatever the currently-active UNNG upstream from Marmot Cave is but Inverted is the only feature on the GT map there. height about 1½m. |