| Date: | 1966-07-10 |
| Time: | 1620 |
| Geyser: | Dark Cavern |
| Webcam: | No |
| Initial: | No |
| Major/Minor: | N/A |
| Duration: | |
| Time Entered: | 2017-09-24 08:10:33 |
| Time Uploaded: | 2017-10-02 14:28:48 |
| Entrant: | research-mab |
| Observer: | 1966 log |
| Submitted to: | |
| Comments: | Both vents: strong discharge & runoff – not a steam phase. Next play...was normal |