| Date: | 1967-10-09 |
| Time: | 0000 A |
| Geyser: | East Sentinel |
| Webcam: | No |
| Initial: | No |
| Major/Minor: | N/A |
| Duration: | |
| Time Entered: | 2021-10-22 12:43:30 |
| Time Uploaded: | 2021-10-22 12:43:30 |
| Entrant: | mhreed |
| Observer: | Marler (1967) report |
| Submitted to: | |
| Comments: | No time available. From "Hot spring activity in the geyser basins of the Firehole River for the 1967 season," pg. 8: "On October 9 East Sentinel Geyser erupted for the first observed time during the season. The height was about 20 feet. At times in the past this geyser has been very active. I have never observed it to erupt when there is high water in the Firehole River. West Sentinel is a steady geyser." |