Current Activity of Selected Geysers

All geyser activity changes with time; this list was compiled Feb. 27, 2012. Predicted geysers are marked with an asterisk (*). You may also call (307)-344-2751 for current predictions.

Upper Geyser Basin
Location	Average Interval	Duration	Height (ft/m)
*Old Faithful	90 or 62 min (+/- 10 minutes)	1.5-5 min	106-184'/30-55m
Artemisia	Irregular (9-31 hours)	5-25 min	30'/9m
Aurum	Few recent reports.	70 sec	20'/6m
Baby Daisy	35-55 min	3 min	25'/8m
Beehive	Irregular (9-17 hours)	5 min	150+'/45+m
"Boardwalk"	Irregular	5-10 min	20'/6m
*Castle	14 hours (+/- 1 hour))	15-20 min (frequent minor eruptions))	75'/24m
*Daisy	2 hours 30 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	Dormant since fall of 2011	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: 1/2/2011; 5/7-8/2011; 9/13/2011	4-48 hours	150+'/45+m
*Grand	7.5 hours (+/- 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	60-80 min	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	10-13 hours	25-50 min	50'/15m
*Great Fountain	12 (+/- 2 hours)	45-60 min	70-200+'/22-60+m
Norris Geyser Basin
Location	Average Interval	Duration	Height (ft/m)
Echinus	Last known eruption: 2/2009 and 12/7/2009	3-5 min	30+'/9+m
Steamboat	Last eruptions 4/27/03, 10/22/03, and 5/23/05	10+ min (water phase) hours to days (steam phase)	300+'/90+m

Predicted geysers are marked with an asterisk (*). Check with rangers for current information, preferably at the OId Faithful Visitor Education Center. You may also call [phone] for current predictions.