Uploaded August 2026 | Updated September 2026, 2 weeks ago

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Grand 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.

Grand Geyser is a fountain-type geyser and one of the largest geysers in Yellowstone. It is the namesake of the Grand Group in the Upper Geyser Basin. Grand is the world’s tallest predictable geyser, with bursts that can reach between 150 and 200 feet high. Eruptions consist of about 10 minutes’ worth of tall, overlapping bursts. One or more additional series of bursting can occur after this. In summer 2026, Grand’s intervals (= eruption start to eruption start) were about 6 to 11 hours.

Grand Group videos:
youtube.com/playlist?list=PL8dL6UmmXTBVjGW29wJLybN4KNdVYnYG5

Grand Geyser videos:
youtube.com/playlist?list=PL8dL6UmmXTBVbfoedEQOfpRcpzl1ADf0w

All clips - Grand Geyser’s 12:34 to 12:45 PM eruption on 14 August 2026.







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