| Date: | 2018-06-05 |
| Time: | 1854 |
| Geyser: | Mugwump |
| Webcam: | No |
| Initial: | No |
| Major/Minor: | N/A |
| Duration: | |
| Time Entered: | 2018-06-05 21:53:34 |
| Time Uploaded: | 2018-06-05 21:53:34 |
| Entrant: | JSJ |
| Observer: | James St. John |
| Submitted to: | Geysertimes.org |
| Comments: | Frist burst at near-mid 1854, with thumps. Second burst at late 1854 to earliest 1855, with thumps - good bursting. |