Last Known Eruption
48y 235d 16h 53m ago
Interval Statistics
| Interval Count | 19 |
| Min | 2h 37m |
| Max | 14y 347d 5h 30m |
| Mean | 1y 39d 14h 11m |
| Median | 10d 21h 36m |
Latest Notes
| Note ID | Start Time (US/Mountain) | End Time (US/Mountain) | Entrant | Note |
|---|
| 13169 |
11 Aug 2019 @ 1210 |
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bbev |
Steamy and gurgling from main and north vents. |
| 7678 |
02 Oct 1974 @ 1800 |
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research-mab |
10/2/74 Koehn observed & heard Union Geyser erupt from Bear Landing “Observed and heard eruption… sounded like a jet taking off.” {From Shoshone Cove Log Book - transcribed by Rick H- no time known} |
No attachments for this geyser.