Uploaded July 2024 | Updated September 2026, 2 weeks ago
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Little Brother Geyser (2024)
Geysers are hot springs that episodically erupt columns of water. They occur in few places on Earth. The highest concentration of geysers anywhere is at the Yellowstone Hotspot Volcano in northwestern Wyoming, USA.
Little Brother Geyser is in the Myriad Group of Yellowstone's Upper Geyser Basin. It is often dormant, but is active during some seasons (e.g., 1983, 1999, 2009, 2011, 2013, 2016, 2022, 2023, and 2024). The geyser is part of the Three Sisters Spring complex, which includes South Sister Spring, Middle Sister Spring, North Sister Spring (usually mis-referred to as an unnamed feature), Mugwump Geyser, Three Crater Geyser, an unnamed feature designated "UNNG-MYR-1", and Little Brother Geyser. Usually, the water level of the complex is high enough for all of those features to be submerged. Normally, Three Crater Geyser is the only regularly-active feature in the area.
When active, Little Brother often has very frequent eruptions, with intervals as little as less than one minute. Many intervals are ~1 to 7 minutes, but they can be much longer and erratic. Eruptions are about 1 to 5 seconds in duration and involve one or more splashy spikes of water.
Little Brother Geyser videos:
youtube.com/playlist?list=PL8dL6UmmXTBUO5FahXtXpW0jUNo4U9Vpv
Clip 1 - Little Brother Geyser eruption on 4 June 2024.
Clips 2-21 - Little Brother Geyser eruptions on 12 June 2024.
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-------------------
Little Brother Geyser (2024)
Geysers are hot springs that episodically erupt columns of water. They occur in few places on Earth. The highest concentration of geysers anywhere is at the Yellowstone Hotspot Volcano in northwestern Wyoming, USA.
Little Brother Geyser is in the Myriad Group of Yellowstone's Upper Geyser Basin. It is often dormant, but is active during some seasons (e.g., 1983, 1999, 2009, 2011, 2013, 2016, 2022, 2023, and 2024). The geyser is part of the Three Sisters Spring complex, which includes South Sister Spring, Middle Sister Spring, North Sister Spring (usually mis-referred to as an unnamed feature), Mugwump Geyser, Three Crater Geyser, an unnamed feature designated "UNNG-MYR-1", and Little Brother Geyser. Usually, the water level of the complex is high enough for all of those features to be submerged. Normally, Three Crater Geyser is the only regularly-active feature in the area.
When active, Little Brother often has very frequent eruptions, with intervals as little as less than one minute. Many intervals are ~1 to 7 minutes, but they can be much longer and erratic. Eruptions are about 1 to 5 seconds in duration and involve one or more splashy spikes of water.
Little Brother Geyser videos:
youtube.com/playlist?list=PL8dL6UmmXTBUO5FahXtXpW0jUNo4U9Vpv
Clip 1 - Little Brother Geyser eruption on 4 June 2024.
Clips 2-21 - Little Brother Geyser eruptions on 12 June 2024.
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