• Winter visitors watching geysers erupting

    Yellowstone

    National Park ID,MT,WY

Current Activity of Selected Geysers

All geyser activity changes with time; this list was compiled May 25, 2014. Predicted geysers are marked with an asterisk (*). You may also call (307)-344-2751 for current predictions.
 
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Upper Geyser Basin

Location Average Interval Duration Height (ft/m)
*Old Faithful 94 or 62 min
(+/- 10 minutes)
1.5-5 min 106-184'/30-55m
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 11-19 hours to over two weeks) 5 min 150+'/45+m
"Boardwalk" Irregular 5-10 min 20'/6m
*Castle 13 hours (+/- 1 hour)) 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. Summer 2013 intervals ranged from 3-6 days. Last eruption 03/14.

35 min 100+'/30+m
Giant Last eruptions: 10/3/2008; 2/8-9/2009; 1/15-16/2010; 1/22/2010 - 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 45 minutes (+/- 2 hours) 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
Plume Irregular. Dormant since 2012. 1 min 25'/8m
*Riverside 5 hours 50 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 11.5 (+/- 2 hours) 45-60 min 70-200+'/22-60+m

Norris Geyser Basin

Location Average Interval Duration Height (ft/m)
Echinus Last known eruption: 6/18/12; 5/5/13 3-5 min 30+'/9+m
Steamboat Last eruptions 5/23/05; 7/31/13 10+ min (water phase)
hours to days (steam phase)
300+'/90+m

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