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See Twig Geyser, Lower Geyser Basin, Yellowstone National Park, Wyoming

Twig Geyser is a moderately small, fountain-type geyser in the Fountain Group of Yellowstone's Lower Geyser Basin. It has a basin about 4.5 to 5 meters in diameter with a centrally-located vent. Eruptions vary in duration and consist of splashes that reach 1 to 2 or even ~3 meters high. Fairly brief pauses with a more-or-less sustained water level in the basin are frequent. Near the end of an eruption, the geyser becomes calmer and pauses get longer. After an eruption, there's a moderately slow pool drain.
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