Yellowstone National Park

Geology Timeline

2.7 billion to 570 million years ago Precambrian History: The most ancient rocks in North America form during the Precambrian era. Huge mountain ranges form and erode away, until Yellowstone is a relatively flat plain. 600 million to 75 million years ago Floods alter the Landscape: The region is periodically flooded by ...

Green Practices at Yellowstone

In recent years, Yellowstone has adopted innovative and effective sustainability practices. As the world's first national park, Yellowstone is still making history by introducing creative initiatives that address pollution prevention, renewable alternative fuels, recycling opportunities, and energy conservation.  To help maintain the parks pristine air quality, rangers and other park ...

Harry Yount

In 1880, Yellowstone's superintendent set Lamar Valley aside as a game reserve to protect the remaining herds of deer, elk, antelope and bighorn sheep, whose numbers had been devastated by market hunters. (Hunting was then allowed in the park.) Harry Yount, a frontiersman known as "Rocky Mountain Harry," was hired ...

Hayden Expedition

Dr. Ferdinand V. Hayden, director of the U.S. Geological & Geographical Survey of the Territories, decided to explore the Yellowstone area at the urging of Nathaniel P. Langford and his cohorts. After receiving an appropriation of $40,000, Hayden set forth from Ogden, Utah, with a party of 34 men ...

Highlights of Yellowstone

Established: In 1872, legislation was passed making Yellowstone the world's first national park. Land Area: 2.2 million acres of forests (80 percent), grassland (15 percent) and water (five percent). Although 96 percent of Yellowstone is claimed by Wyoming, small portions of the park also lie in Montana (three percent) and ...

History of Yellowstone

Throughout its dynamic history, Yellowstone has inspired awe in all its visitors—American Indians, mountain men, explorers and modern-day adventurers. The Earliest Humans in Yellowstone The human history of the vast Yellowstone region goes back more than 11,000 years. How far back has yet to be determined, but their presence probably coincided ...

Activities & Programs

Listen to the sound of long summer days calling you to experience adventure in Yellowstone’s mountain wilderness. The backcountry beckons anglers to streams teeming with fish, and hikers to trails winding through meadows undulating with wildflowers. Whether fishing on the Madison River, taking a guided walk with an interpretive ...

Hydrothermal Features

Yellowstone has the largest and most varied collection of hydrothermal features on Earth. Geysers, hot springs, mud pots and fumaroles bubble, gurgle, hiss and spout throughout the area. The presence of so many thermal features and earth tremors indicates that molten rock lies just beneath the Earth's surface. Hydrothermal features ...

Yellowstone National Park

Superintendent Name: 
Suzanne Lewis
Yellowstone is the world's first national park and one of the largest in the contiguous United States. Sprawling across volcanic plateaus in the northwest corner of Wyoming, Yellowstone contains more than 2 million acres of steaming geysers, crystalline lakes, thundering waterfalls and panoramic vistas.
Park Open Info: 
Year-round (some roads close during the winter season)
Park Closed Info: 
Year-round (some roads close during the winter season)
Park Acreage: 
Highest Point: 
Eagle Peak
Highest Point Elevation: 
11367 feet
Visitor Count: 
Visitor Count Year Recorded: 
Has Volunteer Program: 
Has Recycling: 
Has Shuttle System: 
Park Sights: 
Mammoth Hot Springs; Old Faithful; Norris and Firehole River Geyser Basins; Grand Prismatic Sping; Morning Glory Pool; Yellowstone Lake; West Thumb Geyser Basin; Tower Fall; Petrified Forest; Grand Canyon of the Yellowstone; Hayden Valley
Endangered Species: 
Grizzly Bear; Bald Eagle (threatened); Canada Lynx; Gray Wolf
Entrance Fees: 
Individual Pass (valid for 7 days): $12; Motorcycle or Snowmobile Pass (valid for 7 days): $20; Vehicle Pass (valid for 7 days): $25; Annual Park Pass: $50
Nearest Major City: 
West Yellowstone, MT; Jackson, WY
Gateway Communities: 
West Yellowstone, MT; Gardiner, MT; Silver Gate, MT; Cooke City, MT; Macks Inn, ID; Island Park, ID; Moran, WY; Emigrant, MT; Wapiti, WY; Pray, MT; Moose, WY; Squirrel, ID; Roscoe, MT; Big Sky, MT; Felt, ID; Tetonia, ID; Nye, MT
Nearby Airports: 
Billings Logan International Airport (BIL); Gallatin Field Airport (BZN); Yellowstone Regional Airport (COD); Jackson Hole Airport (JAC); Idaho Falls Regional Airport (IDA); Yellowstone Airport (WYS)

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