| Date: | 2017-04-07 |
| Time: | 1759 ns (?) |
| Geyser: | Riverside |
| Webcam: | Yes |
| Initial: | No |
| Major/Minor: | N/A |
| Duration: | |
| Time Entered: | 2017-04-13 08:28:57 |
| Time Updated: | 2017-04-13 08:33:26 |
| Time Uploaded: | 2017-04-13 08:32:12 |
| Entrant: | JSJ |
| Observer: | James St. John |
| Submitted to: | |
| Comments: | Just off-camera, but a steam plume consistent with a Riverside eruption apparently first visible at late 1759. |