| Date: | 2018-06-25 |
| Time: | 1603 |
| Geyser: | Grotto |
| Webcam: | No |
| Initial: | No |
| Major/Minor: | N/A |
| Duration: | 86 min |
| Standardized Duration: | 1h 26m |
| Time Entered: | 2018-06-26 05:19:27 |
| Time Uploaded: | 2019-05-13 21:36:52 |
| Entrant: | BrianR |
| Observer: | |
| Submitted to: | Geysertimes.org |
| Comments: | Grotto Fountain tried before eruption |