Excelsior Geyser Crater

From Wikipedia: The Excelsior Geyser pool discharges 4,000 to 4,500 gallons (15,100–17,000 l)[5] of 199 °F (93 °C)[3] water per minute directly into the Firehole River. In the late 19th century (there was possibly some activity in 1901 too), it was an active geyser that erupted frequently. Most eruptions were about 100 feet high, althoughContinue reading “Excelsior Geyser Crater”

Sapphire Pool

“Temperature 200-202°F Dimensions 18×30 feet. Sapphire Pool, named for its blue, crystal-clear water and for its resemblance to an Oriental sapphire, was once a placid hot pool. It was not until after the 1959 earthquake that major eruptions occurred. For several years following the earthquake powerful eruptions at two hour intervals reached 150 feet. TheContinue reading “Sapphire Pool”