Uploaded January 2026 | Updated September 2026, 2 weeks ago
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Sawmill Geyser (2025)
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.
Sawmill Geyser is the namesake of the Sawmill Group in Yellowstone's Upper Geyser Basin. It is a frequently erupting, moderate-sized, fountain-type geyser, typically with long durations. Eruptions consist of brief, overlapping, medium-sized, splashing bursts of water. Unusually, from late January 2017 to late June 2021, Sawmill Geyser was dormant.
This video shows two eruptions of Sawmill Geyser in the afternoon of 9 August 2025. The first eruption was at 1:46 PM, with a duration of less than one minute. A ~2.5 hour long Sawmill eruption occurred after that, from 2:52 to 5:24 PM (= duration of 2 hours and 32 minutes). The highest water reached about 46 feet.
Sawmill Geyser videos:
youtube.com/playlist?list=PL8dL6UmmXTBUOZH2ocYecHKeLaM8IMDx5
Clip 1 - Sawmill Geyser’s 1:46 PM eruption on 9 August 2025.
Clips 2-14 - Sawmill Geyser’s 2:52 to 5:24 PM eruption on 9 August 2025.
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Sawmill Geyser (2025)
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.
Sawmill Geyser is the namesake of the Sawmill Group in Yellowstone's Upper Geyser Basin. It is a frequently erupting, moderate-sized, fountain-type geyser, typically with long durations. Eruptions consist of brief, overlapping, medium-sized, splashing bursts of water. Unusually, from late January 2017 to late June 2021, Sawmill Geyser was dormant.
This video shows two eruptions of Sawmill Geyser in the afternoon of 9 August 2025. The first eruption was at 1:46 PM, with a duration of less than one minute. A ~2.5 hour long Sawmill eruption occurred after that, from 2:52 to 5:24 PM (= duration of 2 hours and 32 minutes). The highest water reached about 46 feet.
Sawmill Geyser videos:
youtube.com/playlist?list=PL8dL6UmmXTBUOZH2ocYecHKeLaM8IMDx5
Clip 1 - Sawmill Geyser’s 1:46 PM eruption on 9 August 2025.
Clips 2-14 - Sawmill Geyser’s 2:52 to 5:24 PM eruption on 9 August 2025.
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