Timothy Westervelt had a $250,000 warrant after prosecutors charged him with multiple counts of child sex abuse. He had been an active member of the Yellowstone Militia.

The 3.7 magnitude earthquake hit near the 150,000-year-old Norris Geyser Basin, home to the famous Steamboat Geyser and Morning Glory Pool ...

A magnitude 3.9 earthquake was measured near Norris Geyser Basin in Yellowstone National Park on Tuesday evening. It's the ...

Yellowstone National Park, the oldest national park in the USA and home to some of the most unique geological features on ...

Yellowstone National Park's oldest and hottest geothermal area, a favorite spot for park visitors, was shaken by a minor ...

Yellowstone coyote not alone; can you spot the other mammal? Trump signs 4 new executive orders, transforming military Archaeologists found Viking skeletons over 1,000 years old buried with a crystal ...

A magnitude 3.9 earthquake occurred near Norris Geyser Basin in Yellowstone National Park on January 28 at about 6:00 p.m.

The Yellowstone supervolcano, located beneath Yellowstone National Park in Wyoming, is one of the most powerful volcanic ...

Ranger naturalist George D. Marler monitoring of changes in hydrothermal activity in Yellowstone was useful in understanding ...

Ranger naturalist George D. Marler meticulously documented changes in hydrothermal activity in the geyser basins of ...

Deep within the Yellowstone Caldera, the bowl-shaped rock cauldron at the heart of Yellowstone National Park, there’s a clue ...

which formed at an altitude of 10,000 feet about 6,000 years ago when temperatures in the Greater Yellowstone Ecosystem were similar to their current level. When volcanic activity in the northern ...