Before you drop that 2010 quarter into a vending machine (or let it vanish into your car's cup holder forever), take a closer ...

Trout Unlimited is proposing to complete the second phase of work to create better fish spawning and rearing habitat on Mill ...

The highly-anticipated "Yellowstone" season (series?) finale aired Sunday night. But before the opening scene, the show started with a tribute to a legend of the quarter horse world. Bob Avila ...

Every day, like clockwork, geysers in Yellowstone National Park erupt in a burst of volcanic activity as tourists ooh and ah at the spectacle. (SOUNDBITE OF ARCHIVED RECORDING) UNIDENTIFIED CROWD ...

Yet the National Park Service is only a quarter of the way toward its proposal ... said one group he was monitoring on the north end of Yellowstone resisted hazing efforts and ran back into ...

A Seattle tourist will serve one week in prison for walking off the boardwalk at Yellowstone National Park and getting too close to Old Faithful. The 44-year-old woman pleaded guilty to leaving ...

Researchers from Rice University imaged the magma underneath Yellowstone and showed how it vents pressure, reducing the likelihood of a massive eruption anytime soon.