Performing duty. . .
| Geyser: | Dark Cavern |
| Date/Time: | 1991-05-16 @ 1200 |
| Entrant: | research-mab |
| Observer: | 1991 Norris log |
| Time Entered: | 2023-11-18 12:29:38 |
| Time Uploaded: | 2023-11-18 12:29:38 |
| Submitted to: | Geysertimes.org |
| Note: | 5/16/1991 - no time noted - Dark Cavern – eruptions within crater nearly constant with only a few seconds between bursts |