Caldera Chronicles

Fall is a time for maintaining monitoring sites in Yellowstone, since they will not be accessible during the winter months.  That includes the...

Some of the most valuable data used to understand the evolution of the Yellowstone volcano come from the microscopic world. What are some of the tools...

Thanks to technology like GPS (Global Positioning System), scientists know that the ground at Yellowstone moves up and down at a rate of a few...

Yellowstone’s most famous thermal areas, like Norris Geyser Basin, are located on land, but a surprising number of thermal areas are also present...

What better way to celebrate the upcoming 150th anniversary of Yellowstone National Park than with an updated geologic map? Scientists and students...

Old Faithful is the most famous geyser in the world, but who named the iconic feature?  And how does the current frequency of its eruptions compare to...

Scientists of all disciplines talk about models—models of how a virus works, or the universe formed, or the structure of an atom.  Models can also...

It’s a common misconception that all geysers and hot springs in Yellowstone are acidic.  Some are, but the water that comes out of many of Yellowstone...

Volcanologists have a variety of ways of measuring present-day gas emissions from volcanoes.  But what about gas emissions that happened in years past...

Hayden Valley is a gorgeous expanse of grassland and meadows located right in the center of Yellowstone National Park.  It is a haven for wildlife and...

Yellowstone’s thermal features, like geysers and mud pots, are delicate and dangerous. So how can scientists get a close-up view of these structures...

It seems like a simple question: how old is a geyser?  We know that all of Yellowstone’s current geysers formed after the last glaciers scoured the...

Have you ever wondered just what went in to going from ground shaking detected by a seismometer to a located earthquake available for viewing online? ...

Yellowstone's Upper Geyser Basin is one of the truly unique places on Earth. It contains the world's highest concentration of geysers, including Old...

Explosive super eruptions are among the most extreme events to affect the Earth’s surface. Thankfully, humans have not experienced such an event in...

With oceans covering over 70% of Earth's surface and an atmosphere rich in volatile elements (carbon, nitrogen and oxygen), Earth has seemingly always...

The American West is a land filled with tales of adventure and discovery. Countless stories of brave frontiersman and frontierswoman are still told...

Since 2013, the Yellowstone Volcano Observatory has been a consortium of 8 institutions—a mix of state and federal agencies and academic institutions...

Yellowstone Volcano remains at GREEN/NORMAL. Yellowstone National Park is open and seasonal field work began last month. The University of Utah...

Are you interested in Yellowstone’s dynamic geology? Do you like maps? If the answer to both questions is “yes,” then you’ll love a new online...