Last Known Eruption
58d 3h 35m ago

Interval Statistics

Interval Count25
Min2h 11m
Max2y 232d 22h 46m
Mean173d 17h 4m
Median47d 22h 1m

Latest Notes

Note IDStart Time (US/Mountain)End Time (US/Mountain)EntrantNote
11272 20 May 2019 @ 1010 --- Micah Kipple Heavily steaming and puffing. No water.
4090 12 May 2017 @ 1622 --- Tara Forced steam, no water visible.
1467 26 Oct 2014 @ 1054 --- WillBoekel splashing at 1054
1468 26 Oct 2014 @ 1050 --- WillBoekel empty at 1050
1466 26 Oct 2014 @ 0908 --- WillBoekel was full with water and splashing/boiling to a max height of a foot but mostly just inches at 0908
06 Aug 2017 @ 1223 JSJ Video compilation showing Old Cone Geyser's early afternoon eruption on 6 August 2017.
03 Jul 2016 @ 1946 JSJ Video clips of Old Cone Geyser erupting during the evening of 3 July 2016.
Baseline does not exist.

All data is shown in US/Mountain timezone unless specified otherwise. is not affiliated with the National Park Service, but it is "for the benefit and enjoyment of the people".

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