Thursday, June 23, 2005

Excelsior Geyser was once the largest geyser in the world until the massive eruptions (during the 1880s, heights reached 300 feet) damaged the thermal feature's plumbing. Excelsior now is a huge spring that discharges about 4000 gallons of water per minute. This photo shows the crater's sinter rim, which is about 15 feet above the water level. The boardwalk for visitors appears in the upper right corner.

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