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West Yellowstone, Montana
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In the late 19th century, Excelsior Geyser was known for its powerful eruptions, reaching heights of up to 300 feet, but it has been mostly dormant since 1890.
The water temperature in Excelsior Geyser's pool can reach up to 199°F (93°C), making it one of the hottest geothermal features in Yellowstone.
Excelsior Geyser discharges over 4,000 gallons of hot water per minute into the Firehole River, significantly impacting its temperature and ecosystem.
While it was once a frequently erupting geyser, Excelsior has been mostly inactive since the early 20th century, with only occasional bursts of activity.
The crater of Excelsior Geyser is approximately 300 feet wide, making it one of the largest geyser craters in Yellowstone National Park.
