Last Known Eruption
1y 40d 10h 47m ago

Interval Statistics

Interval Count24
Min1h 28m
Max1y 198d 8h 49m
Mean60d 18h 3m
Median8d 8h 19m

Latest Notes

Note IDStart Time (US/Mountain)End Time (US/Mountain)EntrantNote
11607 06 Jun 2019 @ 1100 06 Jun 2019 @ 1230 JSJ Watched Steel Bridge Springs for 1.5 hours. No eruptions. Light, passive steaming from Perfect Plume Geyser & MRCGNN016 & 023 (apparently engaged in low spitting in vent) & 025/026 & 027 & 032.
9072 08 Jul 2018 @ 1855 --- Micah Kipple Cone was wet and reflecting sunlight. Perhaps post eruptive.
8635 11 Jun 2018 @ 1012 --- underarockphoto Not in series
8626 10 Jun 2018 @ 2103 --- underarockphoto Not erupting but is in series.
4306 12 Jun 2017 @ 1544 12 Jun 2017 @ 1632 JSJ Watched Steel Bridge Springs for almost an hour. No eruptions.
4260 07 Jun 2017 @ 1145 07 Jun 2017 @ 1315 JSJ Watched Steel Bridge Springs for about 1.5 hours. No eruptions from any of the 5 main vents. Light steaming only from 3 of them: MRCGNN016 (= UNNG-MGB-2) & MRCGNN032 & MRCGNN027. The other two vents were not steaming: MRCGNN013 (= UNNG-MGB-1) & MRCGNN023. Catalog numbers are from the RCN database.
4002 23 Apr 2017 @ 1014 --- Micah Kipple From the road, there was a fresh wet channel to the river, and upon slowing down it appeared that there was an area of wash around the crater
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22 Sep 2018 @ 1723 JSJ https://www.youtube.com/watch?v=h8yEuBvB6zA Video by Micah Kipple.
Baseline does not exist.