| Date: | 2018-05-12 |
| Time: | 1429 |
| Geyser: | Steamvalve Spring |
| Webcam: | No |
| Initial: | No |
| Major/Minor: | N/A |
| Duration: | 30s |
| Standardized Duration: | 30s |
| Time Entered: | 2018-05-13 05:04:22 |
| Time Uploaded: | 2019-05-13 21:48:57 |
| Entrant: | MAB |
| Observer: | |
| Submitted to: | Geysertimes.org |
| Comments: | noticed increased steam @ 1426 when returning from parking – stepped in to look – started brief eruption from low in the crater – bursts visible above crater rim but not big |