'Supervolcano' Under Yellowstone May Have Planet-Killing PotentialResearchers believe the Yellowstone volcano could potentially be ready to erupt within the next few decades.
42 People From 19 Countries Become U.S. Citizens In YellowstoneDozens of people are United States citizens after taking the Oath of Allegiance at a very special place.
Watch: 'Eerie Light' Fills The Sky In Yellowstone During EclipseWhile the path of totality passed through Grand Teton National Park to the south, Yellowstone National Park an "eerie light" on Monday as well.
Man Severely Burned In Yellowstone Hot SpringA 21-year-old North Carolina man suffered severe burns after falling into a hot spring in Yellowstone National Park.
Watch: Bear Has An Itch That Needs To Be ScratchedA wildlife cam captured a great video of a bear who just had an itch that needed scratching.
Signs Of Spring Popping Up In Colorado's National ParksSpring has sprung in Colorado's national parks.
Yellowstone National Park Celebrates 145th BirthdayThe world's first national park turned 145 on Wednesday.
Yellowstone National Park Entrances Open Despite Heavy SnowBoth the south and east entrances to Yellowstone National Park were closed Wednesday due to heavy snowfall.
Visitor Misbehavior Abounds As U.S. Parks Agency Turns 100As National Parks celebrate 100 years, respect among visitors with wild animals is falling, including in Rocky Mountain National Park.
Forecasts Favor Fire Growth In Yellowstone, Grand TetonAs visitors enjoyed free entry to Yellowstone and Grand Teton national parks on Friday firefighters in both parks prepared for an expected increase in fire activity over the weekend.
Black-Footed Ferrets Return To Where They Held Out In WildA nocturnal species of weasel with a robber-mask-like marking across its eyes has returned to the remote ranchlands of western Wyoming where the critter almost went extinct more than 30 years ago.
Authorities ID Remains As Those Of Missing Colorado Treasure HunterA treasure hunter who disappeared this year while searching for an author's cache of gold and jewels in the New Mexico wilderness was confirmed dead.

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