| Date: | 2018-08-07 |
| Time: | 1322 |
| Geyser: | Marmot Cave |
| Webcam: | No |
| Initial: | No |
| Major/Minor: | N/A |
| Duration: | |
| Time Entered: | 2018-08-07 21:48:58 |
| Time Updated: | 2018-09-07 15:36:56 |
| Time Uploaded: | 2018-09-07 15:36:50 |
| Entrant: | JSJ |
| Observer: | James St. John |
| Submitted to: | |
| Comments: | Water rising at 1321. Repeated low eruptions at 1322-1323. Water drained out-of-sight at 1323. See attachment. |
| Clip 21 of this video compilation (time stamp 8:29 to 10:42) shows Marmot Cave Geyser's 1:22 to 1:23 PM eruption on 7 August 2018 during a fill-and-drain cycle. |