Caldera Chronicles

Perhaps you’ve heard the legend of the melting roads in Yellowstone National Park.  The rumor is based in truth but, as you might expect, badly...

Many people assume that earthquakes at Yellowstone are due to magma and the region “heating up.” It turns out that most Yellowstone seismicity is...

Thermal infrared images tell us how much thermal energy is being emitted from the Earth’s surface.  But how does this work, and how are these images...

Surficial geologic mapping by the Wyoming State Geological Survey (WSGS) has shed light on geologically young faults in the Jackson Lake area, just...

What goes into making a geologic map?  Follow along as geologists investigate a perplexing incongruity in adjoining geologic maps in the north part of...

Sediment cores show that Yellowstone Lake has been a site of repeated hydrothermal explosions over the last 13,000 years. Clues hidden in that...

The Hebgen Lake earthquake is the largest to have struck the Intermountain West region of the United States. High-resolution topographic data from...

The thick ash deposits from past large Yellowstone explosive eruptions are well known, and can be seen throughout the region.  But there are also...

Summer 2023 marks 146 years since the flight of the Nez Perce, when an indigenous tribe crossed Yellowstone in an attempt to reach Canada and during a...

Yellowstone has numerous hot springs, but not all of them boil at the same temperature. This is because the boiling temperature depends on the...