| Date: | 2009-08-11 |
| Time: | 0000 A |
| Geyser: | Black Diamond Pool |
| Webcam: | No |
| Initial: | No |
| Major/Minor: | N/A |
| Duration: | |
| Time Entered: | 2020-05-03 08:08:35 |
| Time Uploaded: | 2020-05-03 08:08:36 |
| Entrant: | mhreed |
| Observer: | Powell article in Transactions XII pg. 76 |
| Submitted to: | Geysertimes.org |
| Comments: | Unknown time between 1015 on August 10 and 0850 on August 11. |