| Date: | 2018-08-07 |
| Time: | 1314 |
| Geyser: | Marmot Cave |
| Webcam: | No |
| Initial: | No |
| Major/Minor: | N/A |
| Duration: | |
| Time Entered: | 2018-08-07 21:48:58 |
| Time Uploaded: | 2018-08-07 21:48:58 |
| Entrant: | JSJ |
| Observer: | James St. John |
| Submitted to: | Geysertimes.org |
| Comments: | Water already up at 1313. Eruptive spouting - twice - bigger than previous eruption. Water drained out-of-sight at 1314. |