Caldera Chronicles

Water molecules (H₂O) are made of two hydrogen atoms and one oxygen atom, but these atoms aren't always the same. Tracking how these atoms in water...

Thermophiles thrive in hydrothermal features where scalding temperatures would burn other life. What can we learn from the unique adaptations of these...

If only we could stick a thermometer into a magma chamber…  That’s not really possible, but fortunately each mineral in a volcanic deposit is like a...

Ever wonder who collects hats blown into Yellowstone hot springs, repairs damage to bacterial mats or thermal ground, and monitors the health of...

Geologic mapping has come a long way—from paper maps to powerful digital databases. But how do researchers store and organize all this data? Join us...

Massive volcanoes dot the Cascade Range from British Columbia into Northern California, but what about the space in between the peaks? Volcanoes in...

Deformation of Earth’s surface can be very subtle.  Accurately detecting how the ground moves in the Yellowstone area requires the right frame of...

The are many types of fluids that flow between the deep mantle underlying Yellowstone National Park and the atmosphere above it. These fluids drive...

Sasquatch is a mythical creature with scant evidence to support its existence.  Likewise, eruptions from Black Diamond Pool since last July were...

Online sources are saying that animals are fleeing Yellowstone National Park.  This isn’t the first time such claims have been made. And just like...

Calculating earthquake magnitudes can be a challenge in places like Yellowstone, where lots of small seismic events can occur in rapid succession. But...

In April 2025, Yellowstone National Park geologists identified a new thermal feature in Norris Geyser Basin. Investigation of multiple data streams...

In geology, even small layers can tell big stories.  But figuring out the origins of such small layers can be a challenge, requiring careful mapping...

The recent death of a bison at Grand Prismatic Spring is an emphatic example of the danger posed by thermal areas in Yellowstone National Park.  But...

One hundred years ago, on June 23, 1925, a mountainside in the Gros Ventre Range in northwest Wyoming collapsed, unleashing one of the largest...

Is it safe to drink treated water from rivers in Yellowstone National Park?  Well, that depends on whether there are any nearby thermal features.

YVO just released an updated version of its response plan for geological hazards in Yellowstone National Park.  The plan describes how Yellowstone...

Continuous infrasound (low-frequency acoustic energy) monitoring is now established in Yellowstone.  And the method is detecting activity that goes...

YVO is pleased to announce the availability of a new static webcam that provides a current view of Black Diamond Pool in Biscuit Basin—site of a...

Yellowstone National Park contains the world’s largest concentration of geothermal features.  In fact, this is the primary reason it was set aside as...