Videos

Although Terrace Spring may appear to be boiling, but it’s temperature is a relatively cool 140 F (60 C). The roiling in the pol is caused by carbon dioxide bubbles. Thousands of years ago, when Yellowstone’s climate was wetter, the water of the springs had a different composition, allowing travertine to form—just like that seen today at Mammoth Hot Spring

Named for a visit in 1891 by members of the Fifth International Geological Congress, the feature in Norris Geyser Basin has behaved as a quiet pool, geyser, and roiling mud pot.

The tallest geyser in the world, with eruptions that exceed 120 meters (400 feet), Steamboat Geyser is known for experiencing years of frequent eruptions followed by years to decades of very few eruptions. The geyser has been in a more active period since 2018.

This feature, not far from Old Faithful, has never been known to truly erupt. It gets its name from adjacent Chinaman Spring, which received its name because a concessioner (who might have been of Japanese descent) in the early days of the park used that spring as a laundry.

This waterfall on Glen Creek is in the Golden Gate area of Yellowstone National Park. The high cliffs on the west side of the canyon are ash deposits from a massive volcanic eruption 2.1 million years ago, while the massif (Bunsen Peak) on the east side is a block of magma that solidified in the shallow subsurface tens of millions of years ago.

The Firehole River drops 150 feet over three tiers in this cascade, or falls, located 2.5 miles upstream of Old Faithful.  The name refers to Kepler Hoyt, the 12-year-old son of Wyoming’s territorial governor, who visited Yellowstone National Park in 1881. Philetus Norris, second superintendent of Yellowstone National Park, named the cascade.

Sizzling ground, which is hot and has a small amount of water, resembles a frying pan. These features are acidic and can be found throughout Yellowstone National Park, although one of the best and most accessible examples is along the road just north of Norris Geyser Basin.

What geologic hazard is most likely to occur in the Yellowstone region on human timescales? The answer might not be what you think.

What geologic hazard is most likely to occur in the Yellowstone region on human timescales?

Geysers and hot springs are some of the most dynamic geologic features on the planet. They are always changing and sometimes that change happens in places where we can see and appreciate it. This has been the case on Geyser Hill, near Old Faithful, in Yellowstone National Park.

Old Faithful, one of the icons of Yellowstone National Park and probably the most famous geyser in the world. But how faithful is it really? That's the question we're going to tackle in this June 1, 2023 update from the Yellowstone Volcano Observatory.

May is traditionally the start of the field season and plans are underway to strengthen monitoring networks, collect data, and conduct research to better understand volcanic activity in the Yellowstone region. Mike Poland, scientist-in-charge of the Yellowstone Volcano Observatory, outlines upcoming projects in this YVO monthly video update for May 1, 2023.

Do animals prank humans? It sometimes feels that way, says Yellowstone Volcano Observatory’s scientist-in-charge Mike Poland. Mike shows some of the ways animals have “interacted” with monitoring equipment in this April 1, 2023 monthly update of activity at Yellowstone Volcano.

Could an external event trigger a Yellowstone eruption? No, says Yellowstone Volcano Observatory’s scientist-in-charge Mike Poland, that’s not how volcanoes work. Most of the pressure that drives a volcano toward eruption comes from within, from the exsolution of gases in the magmatic system.

Winter has arrived in the Yellowstone region. The deep snow and cold temperatures are harsh for animals, harsh for humans, and also harsh for volcano monitoring equipment.

Mike Poland, scientist-in-charge of the Yellowstone Volcano Observatory, provides an overview of 2022 events and December activity in this monthly update for January 1, 2023. 

Just a few days ago, Mauna Loa, the tallest active volcano on the planet, started erupting for the first time in 38 years.

November is Native American Heritage Month. Mike Poland, scientist-in-charge of the Yellowstone Volcano Observatory, talks about Indigenous peoples in the Yellowstone region and describes Yellowstone’s recent seismic, deformation, and geyser activity in this November 1, 2022 monthly update.

Mike Poland, scientist-in-charge of the Yellowstone Volcano Observatory, describes activity at Yellowstone in this monthly update for October 1, 2022. 

The update comes to you from Artist Paintpots in Yellowstone National Park. The paintpots are acid sulfate springs, one of three different types of thermal features in Yellowstone. 

Mike Poland, scientist-in-charge of the Yellowstone Volcano Observatory, describes activity at Yellowstone volcano in this monthly update for September 1, 2022.

Mike Poland, scientist-in-charge of the Yellowstone Volcano Observatory, describes activity at Yellowstone in this monthly update for August 1, 2022.