| Date: | 1989-07-18 |
| Time: | 1700 |
| Geyser: | Dark Cavern |
| Webcam: | No |
| Initial: | No |
| Major/Minor: | N/A |
| Duration: | 10m+ |
| Standardized Duration: | >10m |
| Time Entered: | 2017-07-20 23:29:14 |
| Time Uploaded: | 2019-05-13 21:46:38 |
| Entrant: | research-mab |
| Observer: | Geo box 8 |
| Submitted to: | Geysertimes.org |
| Comments: | bursts to 20’ Wow |