Thinking. . .
| Geyser: | Dark Cavern |
| Date/Time: | 1973-03-10 @ 1800 |
| Entrant: | research-mab |
| Observer: | 1973 log -Rick H |
| Time Entered: | 2017-09-08 09:59:50 |
| Time Uploaded: | 2017-10-02 14:45:06 |
| Submitted to: | |
| Note: | 03/10/1973 Dark Cavern: one eruption timed. Totally play 6:00 minutes, vigorous & noisy phase of eruption (after NW vent was covered) lasted 3:49, and only approximately 20 seconds were required for the water in the main vent to drain. Rick H |