Excelsior Geyser

Excelsior Geyser Crater, formerly known as Excelsior Geyser, is a dormant fountain-type geyser in the Midway Geyser Basin of Yellowstone National Park in the United States. Excelsior was named by the Hayden Geological Survey of 1871.
The Excelsior Geyser pool discharges 4,000 to 4,500 gallons of 199 °F water per minute directly into the Firehole River. In the late 19th century , it was an active geyser that erupted frequently. Most eruptions were about 100 feet high, although some exceeded 300 feet in both height and width. It is believed that the powerful eruptions damaged its internal plumbing system, and it now boils as a productive hot spring most of the time.

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