Official websites use .gov
A .gov website belongs to an official government organization in the United States.
Secure .gov websites use HTTPS
A lock () or https:// means you’ve safely connected to the .gov website. Share sensitive information only on official, secure websites.
Vegetation history based on pollen records from three small lakes on different geological substrates in Yellowstone National Park. Blue is open vegetation, light green is parkland, dark green is forest. Top plot is from Slough Creek Pond, in a present grassland area dominated by glacial and lake sediment in the northeast part of Yellowstone Nationa
Vegetation history based on pollen records from three small lakes on different geological substrates in Yellowstone National Park. Blue is open vegetation, light green is parkland, dark green is forest. Top plot is from Slough Creek Pond, in a present grassland area dominated by glacial and lake sediment in the northeast part of Yellowstone Nationa
Modern vegetation on different geological substrates in Yellowstone. Left: steppe/grassland on glacial clay found in places like Lamar and Hayden Valleys. Center: Mixed conifer forest in the Absaroka andesite volcanic field in the eastern part of Yellowstone National Park. Right: Lodgepole pine forest on Central Plateau rhyolite (hydrothermal grass
Modern vegetation on different geological substrates in Yellowstone. Left: steppe/grassland on glacial clay found in places like Lamar and Hayden Valleys. Center: Mixed conifer forest in the Absaroka andesite volcanic field in the eastern part of Yellowstone National Park. Right: Lodgepole pine forest on Central Plateau rhyolite (hydrothermal grass
Graphic showing how InSAR detects ground deformation by measuring changes in the signal that bounces off the Earth. Figure by the EarthScope Consortium.
Graphic showing how InSAR detects ground deformation by measuring changes in the signal that bounces off the Earth. Figure by the EarthScope Consortium.
Bathymetric map of the West Thumb Basin showing numerous mapped active or inactive hydrothermal vent sites (small white circles) and sampled hot springs (white stars or larger white circles) and sediment cores (yellow diamonds). The white-black line represents the 160,000-year-old West Thumb Caldera margin. West Thumb Geyser Basin is near the southern en
Bathymetric map of the West Thumb Basin showing numerous mapped active or inactive hydrothermal vent sites (small white circles) and sampled hot springs (white stars or larger white circles) and sediment cores (yellow diamonds). The white-black line represents the 160,000-year-old West Thumb Caldera margin. West Thumb Geyser Basin is near the southern en
Schematic summary of rhyolite eruptions in the Yellowstone Plateau volcanic field over the past 1.3 million years. Smaller rhyolite eruptions are known intracaldera eruptions, meaning they occurred within existing caldera structures. Additional rhyolite eruptions that occurred outside the caldera are not included in the figure.
Schematic summary of rhyolite eruptions in the Yellowstone Plateau volcanic field over the past 1.3 million years. Smaller rhyolite eruptions are known intracaldera eruptions, meaning they occurred within existing caldera structures. Additional rhyolite eruptions that occurred outside the caldera are not included in the figure.
Benchmark C9, installed by the US Coast and Geodetic Survey (now the National Geodetic Survey) in 1923 near Apollinaris Spring in Yellowstone National Park. The number stamped into the mark, “7337.580,” is the elevation in feet that was determined by surveys the year the benchmark was established. USGS photo by Michael Poland, September 4, 2024.
Benchmark C9, installed by the US Coast and Geodetic Survey (now the National Geodetic Survey) in 1923 near Apollinaris Spring in Yellowstone National Park. The number stamped into the mark, “7337.580,” is the elevation in feet that was determined by surveys the year the benchmark was established. USGS photo by Michael Poland, September 4, 2024.
The hydrothermal explosion in Biscuit Basin stole all the headlines. But did you know there was a smaller hydrothermal explosion in Norris Geyser Basin on April 15, 2024? That explosion was detected by a new infrasound sensor installed this past September. Watch to learn more.
The hydrothermal explosion in Biscuit Basin stole all the headlines. But did you know there was a smaller hydrothermal explosion in Norris Geyser Basin on April 15, 2024? That explosion was detected by a new infrasound sensor installed this past September. Watch to learn more.
Obsidian: It’s not just a valuable commodity in Minecraft. Obsidian was an important resource for Indigenous peoples across western North America. Learn more in this month's update.
Obsidian: It’s not just a valuable commodity in Minecraft. Obsidian was an important resource for Indigenous peoples across western North America. Learn more in this month's update.
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
Is it true that there's oil in Yellowstone? Watch this month's Yellowstone Monthly update and find out.
Is it true that there's oil in Yellowstone? Watch this month's Yellowstone Monthly update and find out.
In 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.
In 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.
What just happened at Biscuit Basin in Yellowstone National Park? Kaboom! Visitors witnessed a towering plume of steam, rock and mud rise several hundred feet into the air. The brief July 23 event was a classic example of a hydrothermal explosion, not a volcanic eruption.
What just happened at Biscuit Basin in Yellowstone National Park? Kaboom! Visitors witnessed a towering plume of steam, rock and mud rise several hundred feet into the air. The brief July 23 event was a classic example of a hydrothermal explosion, not a volcanic eruption.
Need time to concentrate or relax? Then listen to the gurgling and bubbly sounds of Steamboat Geyser in Yellowstone National Park, Wyoming. "Steamboat Geyser is the world’s tallest active geyser. It showers watchers and drenches the walkway. Days, months, or years pass between the major eruptions of Steamboat Geyser.
Need time to concentrate or relax? Then listen to the gurgling and bubbly sounds of Steamboat Geyser in Yellowstone National Park, Wyoming. "Steamboat Geyser is the world’s tallest active geyser. It showers watchers and drenches the walkway. Days, months, or years pass between the major eruptions of Steamboat Geyser.
Need time to concentrate or relax? Then listen to the natural sounds of Beryl Spring in Yellowstone National Park, Wyoming. Beryl Spring, in the Gibbon River valley south of Artist's Paintpots, is a complex plumbing system in Yellowstone National Park with a strongly and constantly boiling hot spring pool, and a powerful fumarole just behind the pool.
Need time to concentrate or relax? Then listen to the natural sounds of Beryl Spring in Yellowstone National Park, Wyoming. Beryl Spring, in the Gibbon River valley south of Artist's Paintpots, is a complex plumbing system in Yellowstone National Park with a strongly and constantly boiling hot spring pool, and a powerful fumarole just behind the pool.
Need time to concentrate or relax? Then listen to the natural sounds of Blue Mud Steam Vent in Yellowstone National Park, Wyoming. Blue Mud Steam Vent is found within the Norris Geyser Basin in Yellowstone National Park, Wyoming.
Need time to concentrate or relax? Then listen to the natural sounds of Blue Mud Steam Vent in Yellowstone National Park, Wyoming. Blue Mud Steam Vent is found within the Norris Geyser Basin in Yellowstone National Park, Wyoming.
Need time to concentrate or relax? Then listen to the natural sounds of a flowing river through Yellowstone National Park, Wyoming. This audio is from a river below the bridge near the Monument Geyser Trailhead in Yellowstone National Park, Wyoming.
Need time to concentrate or relax? Then listen to the natural sounds of a flowing river through Yellowstone National Park, Wyoming. This audio is from a river below the bridge near the Monument Geyser Trailhead in Yellowstone National Park, Wyoming.
Need time to concentrate or relax? Then listen to the natural sounds of Cinnamon Spouter in Yellowstone National Park, Wyoming. Cinnamon Spouter is located in the Black Sand Basin in Yellowstone National Park, Wyoming.
Need time to concentrate or relax? Then listen to the natural sounds of Cinnamon Spouter in Yellowstone National Park, Wyoming. Cinnamon Spouter is located in the Black Sand Basin in Yellowstone National Park, Wyoming.
Need time to concentrate or relax? Then listen to the natural sounds of Congress Pool in Yellowstone National Park, Wyoming. Congress Pool is a mud pool/mud pot located in the Norris Geyser Basin in Yellowstone National Park, Wyoming.
Need time to concentrate or relax? Then listen to the natural sounds of Congress Pool in Yellowstone National Park, Wyoming. Congress Pool is a mud pool/mud pot located in the Norris Geyser Basin in Yellowstone National Park, Wyoming.
