| Date: | 2021-09-15 |
| Time: | 1923 |
| Geyser: | Marmot Cave |
| Webcam: | Yes |
| Initial: | No |
| Major/Minor: | N/A |
| Duration: | |
| Time Entered: | 2021-09-15 19:23:54 |
| Time Updated: | 2021-09-15 19:29:40 |
| Time Uploaded: | 2021-09-15 19:29:41 |
| Entrant: | SantaFe108 |
| Observer: | |
| Submitted to: | Geysertimes.org |
| Comments: | Big voluminous bursts. Depression unaffected. |