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USGS science on chronic wasting disease (CWD) tackles multiple facets of this complex management challenge.

What do Yellowstone National Park and your father's brother's nephew's cousin's former roommate have in common?  LONE STAR!!!!!

Lone Star is not just an iconic movie hero of the 1980s (and also next year!). It’s an iconic Yellowstone geyser as well!

USGS scientists are studying avian influenza to understand how the virus spreads through and affects wild waterfowl populations.

The moon's Mare Tranquillitatis is an ancient plain of volcanic rock pocked with craters and coated with fine dust. In the 1960s, engineers and scientists in the U.S.

Can you guess the locations of these mystery Landsat images?

Landsat satellites capture images of the Earth’s surface and help scientists study resource management, investigate land surface change, and support disaster response.

KABOOM! That’s what Yellowstone is famous for – huge explosive volcanic eruptions. There’s really nothing brewing right now, the magma chamber is mostly solid, but there have been quite a few hydrothermal eruptions and small explosions in both Biscuit Basin and Norris Geyser Basin as water in the hydrothermal system flashes to steam.

This video is a recording of a previous webinar entitled: “Visualizing Land Cover with MRLC Tools”. This webinar was recorded on January 20, 2026. 

Happy New Year! Let's go back and take a look at the top five geologic stories for Yellowstone in 2025.

Number five: Rumors. It was a year of internet rumors, mostly related to animals fleeing the park, and none of which were true.

Picture a Yellowstone eruption. What comes to mind? It’s a huge explosion, right? Like the one that formed the caldera about 631,000 years ago. But the most common form of eruption in Yellowstone isn’t a huge explosion, it’s a lava flow.

Just over one year ago, early morning visitors to Yellowstone’s Black Diamond Pool suddenly found themselves filming a spectacular event. The July 23, 2024 hydrothermal explosion threw material hundreds of feet high, including rocks that were a foot or more across.

Shakemovie animation showing seismic waves emanating from the magnitude 8.8 Kamchatka Peninsula earthquake.

Grand Prismatic Spring is the largest hot spring in the US, and one of the largest in the world. The boiling lake was named for the spectacular array of colors along its rim.

In May 2025, record rainfall in Australia's New South Wales created major flooding along the coast. In Taree, a mid-North Coast city, the Manning River reached a height of 6.4m on May 21st. The previous record of six meters was set back in 1929. The torrential rains have left almost 800 properties and counting uninhabitable in New South Wales.

There’s a lot of hot water in Yellowstone. What’s it heated by? The magma chamber beneath the surface, of course!

The St. Marys River between Michigan and Ontario is typically frozen January through March. The US Army Corp of Engineers performs maintenance on regulated access channels (the Soo Locks) during the coldest months.

If you want to find a lava flow in Yellowstone, look to the trees! The vegetation is telling us more than you might think.

YVO Scientist-in-Charge Mike Poland reveals how vegetation can be used to map geology in this month's update from the Yellowstone Volcano Observatory.

Well look at this mess! What’s going on? 

We’re just south of Mammoth Hot Springs at a place informally known as the Hoodoos. The official designation for the area is Silver Gate, named by an early Yellowstone National Park visitor because of the way the road wound between the closely spaced white and gray boulders.