| Date: | 1970-07-12 |
| Time: | 1130 |
| Geyser: | Dark Cavern |
| Webcam: | No |
| Initial: | No |
| Major/Minor: | N/A |
| Duration: | 5m |
| Standardized Duration: | 5m |
| Time Entered: | 2017-09-16 17:29:22 |
| Time Uploaded: | 2019-05-13 21:39:08 |
| Entrant: | research-mab |
| Observer: | 1970 Log |
| Submitted to: | |
| Comments: | extended eruption |