| Date: | 2021-10-11 |
| Time: | 1357 |
| Geyser: | UNNG-GHG-18 |
| Webcam: | Yes |
| Initial: | No |
| Major/Minor: | N/A |
| Duration: | 1m 51s |
| Standardized Duration: | 1m 51s |
| Time Entered: | 2021-10-11 14:06:57 |
| Time Updated: | 2021-10-11 14:14:12 |
| Time Uploaded: | 2021-10-11 14:14:12 |
| Entrant: | SantaFe108 |
| Observer: | |
| Submitted to: | GeyserTimes for Android |
| Comments: | Long eruption, but height was moderate-to-low for a lot of it. Late into the eruption the height fluctuated occasionally, at one point suddenly increasing with a big steam plume and then returning to inches pretty much instantly. Marmot Cave's steam somewhat obscured the later parts of the eruption. No pre-play. |