| Date: | 2015-09-21 |
| Time: | 0521 E (View temperature trace) |
| Geyser: | Grotto |
| Webcam: | No |
| Initial: | No |
| Major/Minor: | N/A |
| Duration: | 170m |
| Standardized Duration: | 2h 50m |
| Time Entered: | 2016-08-05 12:31:45 |
| Time Uploaded: | 2019-05-13 21:35:19 |
| Entrant: | Jake |
| Observer: | |
| Submitted to: | Geysertimes.org |
| Comments: |