Excelsior Geyser - Yellowstone National Park - Wyoming Historical Markers on Waymarking.com

“In the 1880s Excelsior Geyser erupted in bursts 50 to 300 feet high. The thermal violence formed the jagged crater and apparently ruptured the geyser’s underground system, causing eruptions to cease after 1890.
On September 14, 1985, Excelsior roared back to life with forty-seven hours of major eruptions. It is impossible to predict when this dormant but powerful geyser’s next eruption will occur.
Though its eruptions have been erratic, the geyser’s outflow is nearly constant, pumping more than 4000 gallons of boiling water per minute over the crater rim into the Firehole River.”

Marker Name: Excelsior Geyser Marker Type: Rural Roadside Addtional Information: Group Responsible for Placement: National Park Service Date Dedicated: Not listed Marker Number: Not listed Web link(s) for additional information: Not listed

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Date Logged Log User Rating   08/25/2019 Duodenfer_ visited it 11/29/2016 Castor007 visited it 10/20/2016 LT_Dream visited it 01/21/2016 BFin visited it 08/20/2015 oiseau_ca visited it 07/19/2015 datenhamster visited it 09/15/2014 tamiuron visited it 07/17/2014 OpusTerra visited it 10/08/2012 Queens Blessing visited it 09/14/2012 petendot visited it 08/10/2012 3Bobs visited it 07/27/2012 The_Simpsons visited it 10/02/2010 Volcanoguy visited it

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