| Date: | 1966-06-28 |
| Time: | 2000 |
| Geyser: | Dark Cavern |
| Webcam: | No |
| Initial: | No |
| Major/Minor: | Major |
| Duration: | |
| Time Entered: | 2017-09-24 08:07:00 |
| Time Uploaded: | 2017-10-02 14:28:48 |
| Entrant: | research-mab |
| Observer: | 1966 log |
| Submitted to: | Geysertimes.org |
| Comments: | 2 major eruptions in a row at 8:00 |