Photograph of the Gros Ventre Slide 100 years after it occurred. View is to the south, with the landslide scar visible in the middle of the treed hillslope across the valley. Lower Slide Lake, which formed behind the landslide debris, is visible on the left side of the photograph. Photo by James Mauch, Wyoming State Geological Survey, June 7, 2025.
Multimedia
Images
Gros Ventre landslide area in 2025
Photograph of the Gros Ventre Slide 100 years after it occurred. View is to the south, with the landslide scar visible in the middle of the treed hillslope across the valley. Lower Slide Lake, which formed behind the landslide debris, is visible on the left side of the photograph. Photo by James Mauch, Wyoming State Geological Survey, June 7, 2025.
Oblique lidar shaded relief image of the Gros Ventre Slide, Wyoming
Oblique lidar shaded relief map looking east up the Gros Ventre River valley, Wyoming. The Gros Ventre Slide, which occurred on June 23, 1925, is outlined in black, and it moved from the high ridge on the south (right side of image) into the valley below. North-dipping sedimentary rock units are labeled in white, separated by white dashed lines.
Oblique lidar shaded relief map looking east up the Gros Ventre River valley, Wyoming. The Gros Ventre Slide, which occurred on June 23, 1925, is outlined in black, and it moved from the high ridge on the south (right side of image) into the valley below. North-dipping sedimentary rock units are labeled in white, separated by white dashed lines.
Eruption from Black Diamond Pool in Biscuit Basin, Yellowstone National Park, captured by a webcam on May 31, 2025
linkThis frame capture of a video from a webcam shows a small eruption emanating from Black Diamond Pool in Biscuit Basin, a subbasin of Upper Geyser Basin in Yellowstone National Park, on May 31, 2025. This was the site of a hydrothermal explosion on July 23, 2024.
Eruption from Black Diamond Pool in Biscuit Basin, Yellowstone National Park, captured by a webcam on May 31, 2025
linkThis frame capture of a video from a webcam shows a small eruption emanating from Black Diamond Pool in Biscuit Basin, a subbasin of Upper Geyser Basin in Yellowstone National Park, on May 31, 2025. This was the site of a hydrothermal explosion on July 23, 2024.
Biscuit Basin webcam view
Image from the webcam installed at Biscuit Basin in Yellowstone National Park. The view is of Black Diamond Pool, where a hydrothermal explosion occurred on July 23, 2024 (many of the rocks behind and to the right of the pool were deposited during that event). The background cliff is the Summit Lake rhyolite lava flow, which is about 111,000 years old.&n
Image from the webcam installed at Biscuit Basin in Yellowstone National Park. The view is of Black Diamond Pool, where a hydrothermal explosion occurred on July 23, 2024 (many of the rocks behind and to the right of the pool were deposited during that event). The background cliff is the Summit Lake rhyolite lava flow, which is about 111,000 years old.&n
Biscuit Basin webcam temporary deployment
Temporary webcam deployed on the boardwalk in Biscuit Basin, Yellowstone National Park. The pan/tilt/zoom camera provides a static view every 15 minutes and records video on site for later download as needed. Black Diamond Pool, site of a hydrothermal explosion on July 23, 2024, is in the background. This work was completed under Yellowstone Nation
Temporary webcam deployed on the boardwalk in Biscuit Basin, Yellowstone National Park. The pan/tilt/zoom camera provides a static view every 15 minutes and records video on site for later download as needed. Black Diamond Pool, site of a hydrothermal explosion on July 23, 2024, is in the background. This work was completed under Yellowstone Nation
Map of Yellowstone thermal areas with insets showing high-resolution satellite views of selected regions
linkMap of Yellowstone’s thermal areas. Inset commercial satellite images highlight thermal areas that are mentioned below: Sulphur Hills (©2022, Maxar, USG), Turbid Lake (©2022, Maxar, USG), and Lower Geyser Basin (©2015, Maxar, USG). This work utilized data made available through the NASA Commercial SmallSat Data Acquisition Program. We acknowledge th
Map of Yellowstone thermal areas with insets showing high-resolution satellite views of selected regions
linkMap of Yellowstone’s thermal areas. Inset commercial satellite images highlight thermal areas that are mentioned below: Sulphur Hills (©2022, Maxar, USG), Turbid Lake (©2022, Maxar, USG), and Lower Geyser Basin (©2015, Maxar, USG). This work utilized data made available through the NASA Commercial SmallSat Data Acquisition Program. We acknowledge th
Videos
Black Diamond Pool (Biscuit Basin, Yellowstone National Park) eruption on May 31, 2025
This video, recorded by a webcam, shows a small eruption from Black Diamond Pool in the Biscuit Basin subbasin of Upper Geyser Basin, Yellowstone National Park, at 8:39 p.m. MDT on May 31, 2025. The pool was the site of a hydrothermal explosion on July 23, 2024.
This video, recorded by a webcam, shows a small eruption from Black Diamond Pool in the Biscuit Basin subbasin of Upper Geyser Basin, Yellowstone National Park, at 8:39 p.m. MDT on May 31, 2025. The pool was the site of a hydrothermal explosion on July 23, 2024.
The Challenge of Volcano Monitoring, Eruption Forecasting, and Protecting Vulnerable Populations
linkThis presentation by Dr. Jake Lowenstern was prepared for the AGU 2024-2025 Distinguished Lecture Series. It discusses the challenges of volcano monitoring, eruption forecasting, and protecting vulnerable populations.
The Challenge of Volcano Monitoring, Eruption Forecasting, and Protecting Vulnerable Populations
linkThis presentation by Dr. Jake Lowenstern was prepared for the AGU 2024-2025 Distinguished Lecture Series. It discusses the challenges of volcano monitoring, eruption forecasting, and protecting vulnerable populations.
Biscuit Basin Hydrothermal Explosion Update (Yellowstone Monthly Update — October 2024)
Let’s get you caught up on what we’ve learned about the July 23, 2024, hydrothermal explosion in Biscuit Basin, in this Yellowstone Volcano Observatory Monthly Update for October 2024.
Read Caldera Chronicles
Let’s get you caught up on what we’ve learned about the July 23, 2024, hydrothermal explosion in Biscuit Basin, in this Yellowstone Volcano Observatory Monthly Update for October 2024.
Read Caldera Chronicles
Biscuit Basin Update; 65th Anniversary — M7.3 Hebgen Lake Quake (Yellowstone Monthly Update - Aug 2024)
linkIn this month's video, we update you on the Biscuit Basin explosion on July 23, 2024, and discuss the 65th anniversary of the M7.3 Hegben Lake earthquake.
Biscuit Basin Update; 65th Anniversary — M7.3 Hebgen Lake Quake (Yellowstone Monthly Update - Aug 2024)
linkIn this month's video, we update you on the Biscuit Basin explosion on July 23, 2024, and discuss the 65th anniversary of the M7.3 Hegben Lake earthquake.
Kansas covered in ash? Yellowstone's aftermath (Yellowstone Volcano Update - March 2024)
Volcanic ash in Kansas? It's true there's thick deposits there, but where are the source volcanoes? Geologists began puzzling over this in the late 1800s when these deposits were first recognized.
Volcanic ash in Kansas? It's true there's thick deposits there, but where are the source volcanoes? Geologists began puzzling over this in the late 1800s when these deposits were first recognized.
Whisper or Roar? No More Secrets (Yellowstone Volcano Update - Feb 2024)
If a geyser erupts and no one is there to hear it, does it make a sound? Of course it does, and now we can hear it no matter when it happens thanks to a new monitoring station in Yellowstone National Park.
If a geyser erupts and no one is there to hear it, does it make a sound? Of course it does, and now we can hear it no matter when it happens thanks to a new monitoring station in Yellowstone National Park.
Webcams
Biscuit Basin webcam
The camera view is north-northwest from the Biscuit Basin boardwalk looking at Black Diamond Pool, which is in the foreground (the tilted viewing angle is due to the slope of the boardwalk).
The camera view is north-northwest from the Biscuit Basin boardwalk looking at Black Diamond Pool, which is in the foreground (the tilted viewing angle is due to the slope of the boardwalk).
[HLcam] Live Image of Mauna Loa's northwest flank from Hualālai volcano
Live view of the northwest flank of Mauna Loa; the view is from the southeast flank of Hualālai [HLcam]. This camera is a pan-tilt-zoom model and the view may change depending on activity.
Live view of the northwest flank of Mauna Loa; the view is from the southeast flank of Hualālai [HLcam]. This camera is a pan-tilt-zoom model and the view may change depending on activity.