Great Fountain Geyser
around 1-2 hours the geyser overflows and drains until it gets so strong it reaches 1 meter and this is the start of the first burst.The prediction can be refined, to plus or minus 15 minutes or so, through observation of overflow from the crater during the period between eruptions.[4] The geyser is then unpredictable until wild-phase activity ceases and more normal eruptions resume.Nearby White Dome Geyser, which erupts considerably more frequently (albeit less powerfully) from a large geyserite cone, is easily seen from the same parking lot that affords a viewpoint for Great Fountain.The thermophilic bacterium Thermus aquaticus, important because it produces an enzyme used in polymerase chain reaction laboratory procedures central to modern molecular biology, was first isolated from Mushroom Pool, a non-eruptive hot spring a few hundred feet from White Dome Geyser.