Uploaded August 2025 | Updated September 2026, 2 weeks ago
--------------------------------------------------
Time lapse video of Slot Geyser & vicinity during the late morning and afternoon of 10 August 2025. Slot Geyser is the occasionally-erupting feature at center. Background eruptive activity includes Beehive's Indicator Geyser (starting at time stamp 0:34), Beehive Geyser (time stamp 0:51), Old Faithful Geyser in the far-left background (time stamps 1:18 and 3:07), and a small, unnamed geyser at far-right referred to as "UNNG-GHG-18" (time stamps 0:05, 0:47, 1:04, 1:46, 2:24, 3:04, and 3:49).
Slot Geyser is a moderately-small, fountain-type geyser in the Geyser Hill Group of Yellowstone's Upper Geyser Basin in Wyoming, USA. Its irregularly-shaped basin is about 4 meters across and has a less-than-one-meter sized, off-center vent on the eastern side of the basin.
Slot Geyser is often dormant, but does have active seasons with frequent eruptions - this most recently occurred in 2014 and fall 2018. Starting in December 2024, Slot Geyser started an active phase and has been reported having eruptions every month of 2025 so far. On 10 August 2025, when this time lapse was taken, Slot Geyser had intervals (= eruption start to eruption start) of 43 to 46 minutes and durations of about 4 minutes.
Just before each Slot eruption, the basin fills with water. Eruptions consist of intermittent, low to moderate-sized, weak to vigorous, sideways splashing toward the west. After the eruption, the water drains from the basin. Slot's specific eruption behavior has varied over the years.
Geyser Hill Group videos:
youtube.com/playlist?list=PL8dL6UmmXTBUMW6oQAafxBFkkAvXyDrE3
--------------------------------------------------
--------------------------------------------------
Time lapse video of Slot Geyser & vicinity during the late morning and afternoon of 10 August 2025. Slot Geyser is the occasionally-erupting feature at center. Background eruptive activity includes Beehive's Indicator Geyser (starting at time stamp 0:34), Beehive Geyser (time stamp 0:51), Old Faithful Geyser in the far-left background (time stamps 1:18 and 3:07), and a small, unnamed geyser at far-right referred to as "UNNG-GHG-18" (time stamps 0:05, 0:47, 1:04, 1:46, 2:24, 3:04, and 3:49).
Slot Geyser is a moderately-small, fountain-type geyser in the Geyser Hill Group of Yellowstone's Upper Geyser Basin in Wyoming, USA. Its irregularly-shaped basin is about 4 meters across and has a less-than-one-meter sized, off-center vent on the eastern side of the basin.
Slot Geyser is often dormant, but does have active seasons with frequent eruptions - this most recently occurred in 2014 and fall 2018. Starting in December 2024, Slot Geyser started an active phase and has been reported having eruptions every month of 2025 so far. On 10 August 2025, when this time lapse was taken, Slot Geyser had intervals (= eruption start to eruption start) of 43 to 46 minutes and durations of about 4 minutes.
Just before each Slot eruption, the basin fills with water. Eruptions consist of intermittent, low to moderate-sized, weak to vigorous, sideways splashing toward the west. After the eruption, the water drains from the basin. Slot's specific eruption behavior has varied over the years.
Geyser Hill Group videos:
youtube.com/playlist?list=PL8dL6UmmXTBUMW6oQAafxBFkkAvXyDrE3
--------------------------------------------------
