Uploaded August 2026 | Updated September 2026, 2 weeks ago
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Cauliflower Geyser (2026)
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.
Cauliflower Geyser is located in the eastern part of the Old Road Group, southeast of the Biscuit Basin parking lot. The geyser consists of a ~22 meter-diameter, subcircular geyserite platform with an irregularly-shaped, ~7 meter-diameter vent positioned south of the platform center. Runoff channels drain to the northeast and to the west. Eruptions are relatively brief, ranging from about 1.5 minutes to ~4 minutes long. Observed 2014 to 2026 eruption intervals ranged from about 36 minutes to 50 minutes. Between eruptions, water levels are below the cauliflower-like, scalloped, projecting geyserite border. The water level slowly rises as an eruption nears. Pre-play consists of 9 to 16 minutes of light pool roiling and bubbling. Eruptions are low-energy and start with partial flooding of the geyserite platform surrounding the vent, followed by intermittent, relatively low, roiling splashes. Larger bursts are uncommon to rare. Large, “major” eruptions at Cauliflower Geyser have not been seen for decades.
Filmed from the Artemisia Trail (= Old Road Trail). Clips have been muted due to traffic, tourists, and wind.
Old Road Group videos:
youtube.com/playlist?list=PL8dL6UmmXTBVpr6RWu7Va9wUleBk9WuWU
Cauliflower Geyser videos:
youtube.com/playlist?list=PL8dL6UmmXTBVOyhvqaa5UoACXrOO7xBrr
Clip 1 - Cauliflower Geyser’s 12:59 to 1:01 PM eruption on 6 August 2026.
Clip 2 - Cauliflower Geyser’s 1:44 to 1:46 PM eruption on 6 August 2026. (time stamp 2:19)
Clip 3 - Cauliflower Geyser’s 2:30 to 2:32 PM eruption on 6 August 2026. (time stamp 4:38)
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-------------------
Cauliflower Geyser (2026)
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.
Cauliflower Geyser is located in the eastern part of the Old Road Group, southeast of the Biscuit Basin parking lot. The geyser consists of a ~22 meter-diameter, subcircular geyserite platform with an irregularly-shaped, ~7 meter-diameter vent positioned south of the platform center. Runoff channels drain to the northeast and to the west. Eruptions are relatively brief, ranging from about 1.5 minutes to ~4 minutes long. Observed 2014 to 2026 eruption intervals ranged from about 36 minutes to 50 minutes. Between eruptions, water levels are below the cauliflower-like, scalloped, projecting geyserite border. The water level slowly rises as an eruption nears. Pre-play consists of 9 to 16 minutes of light pool roiling and bubbling. Eruptions are low-energy and start with partial flooding of the geyserite platform surrounding the vent, followed by intermittent, relatively low, roiling splashes. Larger bursts are uncommon to rare. Large, “major” eruptions at Cauliflower Geyser have not been seen for decades.
Filmed from the Artemisia Trail (= Old Road Trail). Clips have been muted due to traffic, tourists, and wind.
Old Road Group videos:
youtube.com/playlist?list=PL8dL6UmmXTBVpr6RWu7Va9wUleBk9WuWU
Cauliflower Geyser videos:
youtube.com/playlist?list=PL8dL6UmmXTBVOyhvqaa5UoACXrOO7xBrr
Clip 1 - Cauliflower Geyser’s 12:59 to 1:01 PM eruption on 6 August 2026.
Clip 2 - Cauliflower Geyser’s 1:44 to 1:46 PM eruption on 6 August 2026. (time stamp 2:19)
Clip 3 - Cauliflower Geyser’s 2:30 to 2:32 PM eruption on 6 August 2026. (time stamp 4:38)
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