- States: ID, MT, WY
- NPCA Region: Northern Rockies
- Est. Date: 1872
Air & Climate Data
View the 2019 ReportVisibility
Moderate Concern
Health
Moderate Concern
Nature
Significant Concern
Climate
Significant Concern
America's first national park is named after the river that runs through it. Within the park's massive boundaries, visitors can find mountains, rivers, lakes, waterfalls and some of the most concentrated geothermal activity in the world. The park has 60% of the world’s geysers, as well as hot springs and mud pots. It is also home to diverse wildlife with the largest concentration of mammals in the Lower 48 states, including grizzly bears, wolves, bison and elk.
More Than Old Faithful
Yellowstone is home to more than half the world's geysers and an exceptional concentration of geothermal energy.
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Blog Post
Objects at Hand: 10 Curious Park Artifacts
The National Park Service manages one of the largest museum systems in North America, preserving more than 45 million artifacts, from the artful to the odd.
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Blog Post
The Park That Made COVID Testing Possible
A bacterial discovery at Yellowstone 55 years ago has been key to the development of PCR testing, the most reliable way to know whether someone has COVID-19.
My Park Story
Greetings from Yellowstone National Park
I can recall when Yellowstone park rangers politely discouraged tourists from reaching out of the windows of their Pontiacs to offer a handful of Cheez Doodles to bears, instead encouraging us Junior Rangers to attend evenings when camp garbage would be poured from dump trucks onto massive mounds for…
More about Yellowstone
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Read more about Park Talks
Regional Events Park Talks Join our NPCA community for virtual "Park Talks" to learn about our work and ways you can get involved.
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Read more about Lest We Forget
Magazine Article Lest We Forget One man's 30-year mission to honor the lives of more than 260 Park Service employees and volunteers who died while working in the parks.
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Read more about Pines in Peril
Magazine Article Pines in Peril Grand Teton’s lodgepole forests are exquisitely adapted to wildfire — but can they survive a changing climate?
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Read more about The President’s Park Story
Blog Post The President’s Park Story Decades ago, Joe Biden found solace in Yellowstone as a young senator. Can he use our parks to bring Americans together now?
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We need to keep this pristine for future generations!!! — Arthur
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Read more about Final Words
Magazine Article Final Words A former Yellowstone ranger raced to finish a book about two threats — one that endangers national parks and another that ultimately took his own life.
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Read more about Glacier and Yellowstone Grizzly Bear Connectivity, Conservation Supported by Montana Council
Press Release Glacier and Yellowstone Grizzly Bear Connectivity, Conservation Supported by Montana Council Recommendations include restoring connections between Yellowstone and Glacier national park grizzly bears and ensuring communities are better prepared to live with bears.
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Read more about Position on S. 614, Grizzly Bear State Management Act
Policy Update Position on S. 614, Grizzly Bear State Management Act NPCA submitted the following position to members of the Senate Committee on Environment and Public Works ahead of a hearing scheduled for September 9, 2020.
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Read more about The 5 Best Things That Happened for Parks This Summer
Blog Post The 5 Best Things That Happened for Parks This Summer ICYMI: Even amid a global pandemic and months of bad news, advocates won huge victories for our national parks and the people who love them.
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Read more about Victory: 9th Circuit Upholds Endangered Species Protections for Yellowstone Grizzlies
Press Release Victory: 9th Circuit Upholds Endangered Species Protections for Yellowstone Grizzlies Court of appeals sends U.S. Fish and Wildlife Service back to the drawing board to protect Yellowstone and Grand Teton grizzly bears
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Read more about Yellowstone Pronghorn Project: Restoring Ancient Paths
Infographic Yellowstone Pronghorn Project: Restoring Ancient Paths Fences have long been a barrier for Yellowstone pronghorn antelope, as they migrate to crucial winter habitat beyond park borders. Despite being the fastest land mammal in the Western Hemisphere, pronghorn are not built to jump. Fences in their historic migration pathways caused the pronghorn population in Yellowstone to plummet. By 2004, park biologists estimated that fewer than 200 remained in the northern herd. The small herd was extremely susceptible to disease and severe weather threatening the long-term survival of this population.
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Read more about Say Bees!
Magazine Article Say Bees! Sam Droege’s stunning photos of national park insects are the bee’s knees. (And all the other parts, too.)
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Read more about 8 Holiday Adventures in National Parks
Blog Post 8 Holiday Adventures in National Parks These celebrations offer fun ways to get out and enjoy the season in a national park.
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Read more about Yellowstone Is Worth More Than Gold
Victory Yellowstone Is Worth More Than Gold Interior Secretary Ryan Zinke signs 20-year mineral withdrawal that will prevent new mining north of the national park.
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Read more about Court Ruling Saves Greater Yellowstone Grizzly Bears
Victory Court Ruling Saves Greater Yellowstone Grizzly Bears Judge's ruling overturns Trump administration decision to remove endangered species protections from grizzly bears in the Yellowstone and Grand Teton region.
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Read more about Jeff Bridges: A Voice for Yellowstone Grizzlies
Video Jeff Bridges: A Voice for Yellowstone Grizzlies We asked Jeff Bridges what he thinks about grizzly bears.
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Read more about Yellowstone Pronghorn Project: Saving Pronghorn at Yellowstone National Park
ADVOCACY IN ACTION Yellowstone Pronghorn Project: Saving Pronghorn at Yellowstone National Park By modifying miles of fencing, NPCA volunteers have worked for years to help Yellowstone pronghorn migrate safely and survive.
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Read more about Find Your Voice: Yellowstone National Park
Video Find Your Voice: Yellowstone National Park On the borders of Yellowstone National Park decades worth of barriers to pronghorn migration are opening one day at a time thanks to the hard work of volunteers and willing private landowners. Together we can make a difference for national parks and wildlife.
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Read more about Room to Roam
Advocacy in Action Room to Roam Yellowstone's bison are under threat from the moment they cross the park's boundary. Outdated management plans and misunderstandings have led to the routine roundup and slaughter of this wild icon of the American West.
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Read more about Bison Infographic
Infographic Bison Infographic NPCA is working to ensure that the nation's oldest herd of bison in America's first national park have the habitat they need to thrive.
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Read more about The Future of Yellowstone Bison Management
Report The Future of Yellowstone Bison Management NPCA is working to ensure that the nation's oldest herd of bison in America's first national park have the habitat they need to thrive.
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Read more about Reaction to Bison Management Plan Guiding Principles
Letter Reaction to Bison Management Plan Guiding Principles The Interagency Bison Management Plan (IBMP) was finalized in 2000, and, today, fourteen years later, we have new science, new regulations, many management lessons, and some fundamental on-the-ground changes that make the original IBMP outdated. A new conservation plan needs to be put in place to guide bison conservation, education, and management into the next decade.
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Read more about Paradise Valley Corridor Study: Saving Lives by Incorporating Wildlife Passage Opportunities
Report Paradise Valley Corridor Study: Saving Lives by Incorporating Wildlife Passage Opportunities We are recommending that Montana Department of Transportation undertake a cost-benefit analysis of mitigation measures that will increase public safety and decrease the potential for wildlife-vehicle collisions on US 89.
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Read more about Legislative Action on Boating Regulations in Yellowstone
Fact Sheet Legislative Action on Boating Regulations in Yellowstone H.R. 2954 mandates that the National Park Service change its boating regulations on rivers and streams in three years or leave non‐motorized boating unregulated on roughly 7,500 miles of rivers and streams in Yellowstone and Grand Teton
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Read more about Opposition to Legislative Proposals at Cape Hatteras, Yellowstone, and Grand Teton
Letter Opposition to Legislative Proposals at Cape Hatteras, Yellowstone, and Grand Teton NPCA urges Members of the House to Oppose H.R. 2954 when it comes to the House floor tomorrow. Specifically, NPCA opposes provisions to remove protections at Cape Hatteras National Seashore (Title V) and Yellowstone and Grand Teton National Parks (Title VII).
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Read more about Polluted Parks: Fact Sheets
Fact Sheet Polluted Parks: Fact Sheets Haze pollution limits views of our most valued national parks and wilderness areas, affecting not just how far we can see, but also the color, sharpness, and quality of the view. It also makes the air unhealthy for people, wildlife and natural resources.
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