| Date: | 2015-07-12 |
| Time: | 1459 |
| Geyser: | Grotto |
| Webcam: | No |
| Initial: | No |
| Major/Minor: | N/A |
| Duration: | |
| Time Entered: | 2015-07-12 15:02:13 |
| Time Updated: | 2015-07-12 17:11:01 |
| Time Uploaded: | 2016-08-05 12:27:16 |
| Entrant: | RMichaels |
| Observer: | |
| Submitted to: | GeyserTimes for Android |
| Comments: | Grotto Fountain sputtered, but didn't erupt. Grotto's eruption ended at 1709. |