Pink Cone Geyser erupting in August 2011 (Pink Cone Group, Lower Geyser Basin, Yellowstone Hotspot, northwestern Wyoming, USA).
This geyser has a moderately small, subsymmetrical geyserite cone. The coloration has been attributed to manganese oxide staining of the geyserite.
Pink Cone Geyser has ~1.5 to 2 hour-long eruptions about once a day, although this has changed in the past. Dormancies have also occurred. Erupting water column heights reach about 30 feet high.
When active, a slightly-expanding jet of water erupts ~vertically. Eruptions include pauses of several seconds that involve just steam emissions before water eruption resumes.
The above photo shows steam emissions during one of the seconds-long pauses in water eruption.
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