Preserving. . .
| Geyser: | Dark Cavern |
| Date/Time: | 1969-08-18 @ 1200 |
| Entrant: | research-mab |
| Observer: | E. Leigh ~ Norris Thermal Record 1967-69 |
| Time Entered: | 2023-12-21 21:40:25 |
| Time Uploaded: | 2023-12-21 21:40:25 |
| Submitted to: | Geysertimes.org |
| Note: | 1969 - no time noted - playing about every ____ minutes. - Aug 18. Will have a little activity every two minutes, but no water overflow. Erupts with overflow about every 23 minutes. 188ºF The water is more opal in color than last year. |