Current Geyser Activity

Old Faithful Loading…
Castle Loading…
Grand Loading…
Daisy Loading…
Riverside Loading…
Great Fountain Loading…

Notes on Predictions:

- Predictions are not available when the Old Faithful Visitor Education Center is closed, typically early November through mid-December and mid-March through mid-April.

- The last prediction made will remain up until a new prediction is available.

 

Geyser predictions are also available from several sources:

 

Behavior

Geyser activity changes with time; the table below was compiled in March of 2016. Predicted geysers are marked with an asterisk (*) and were updated as of August 6, 2017.

Upper Geyser Basin

Location Average Interval Duration Height (ft/m)
Artemisia Irregular (9-31 hours) 5-25 min 30'/9m
Aurum Irregular (4-22 hours) 70 sec 20'/6m
Baby Daisy 35-55 min 3 min 25'/8m
Beehive Irregular (intervals range from 22-36 hours to over two weeks) 5 min 150+'/45+m
Castle* 13 hours 30 minutes (+/- 45 minutes)
2nd major after a minor: 14 hours 45 minutes (+/- 45 minutes)
15-20 min (frequent minor eruptions) 75'/24m
Daisy* 2 hours 45 minutes (+/- 30 min or longer if windy) 3.5 min 75'/24m
Depression Irregular (2.5 to 4+ hours) 6 min 10'/3m
Fan & Mortar Irregular. Winter 2016 intervals ranged from 5-23 days. 35 min 100+'/30+m
Giant Last eruptions: 10/3/2008; 2/8-9/2009; 1/15-16/2010; 1/22/2010; 9/28/2015 - electronic 90+ minutes 200+'/60+
Giantess Last eruptions: 1/3/2011; 5/7-8/2011; 9/13/2011; 1/29/14 4-48 hours 150+'/45+m
Grand* 6 hours 30 minutes (+/- 60 minutes) 8-12 min 160+'/48+m
Lion Variable intervals between series;
60-90 minute intervals within a Lion series
6-7 min initial
3-5 min succeeding
60'/18m
30'/9m
Little Cub 30-45 minutes when regular 3-5 min 5'/1.5m
Oblong 3-7 hours 5-7 minutes 25'/8m
Old Faithful* 94 or 68 min (+/- 10 minutes) 1.5-5 min 106-184'/30-55m
Plume Irregular. Dormant since 2012. 1 min 25'/8m
Riverside* 6 hours 30 min (+/- 30 min) 20 min 75'/24m
 

Lower Geyser Basin

Location Average Interval Duration Height (ft/m)
Fountain 4.5-7 hours 25-50 min 50'/15m
Great Fountain* 11 hours 30 minutes (+/- 2 hours) 45-60 min 70-200+'/22-60+m
 

Norris Geyser Basin

Location Last Eruptions Duration Height (ft/m)
Echinus 6/18/12, 5/5/13, 7/3/15, 8/12/15, 8/19/15, 8/31/15, 11/24/15 3-5 min 30+'/9+m
Steamboat 5/23/05, 7/31/13, 9/3/14 10+ min (water phase)
Hours to days (steam phase)
300+'/90+m
 

More Information

 
 

Last updated: October 10, 2017

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Mailing Address:

P.O. Box 168
Yellowstone National Park, WY 82190-0168

Phone:

(307) 344-7381

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