Yellowstone by the numbers

The size and scope of Yellowstone National park is hard to imagine until you visit and see it for yourself! To give you an idea of just how immense and incredible Yellowstone is, we’ve collected some key statistics about the park. Check out these impressive Yellowstone numbers, then start planning your visit to discover the wonder for yourself.

131.7 

The number of miles of surface area covered by Yellowstone Lake.

Yellowstone Lake from Lake Butte Overlook

2.2 Million Acres

The land area of Yellowstone National Park. It’s the second largest national park in the contiguous US, only Death Valley is larger.

Hiker in Lamar Valley

310

Number of miles of paved roads in Yellowstone.

Wolf stands on the road

300+

Number of active geysers in Yellowstone.

Great-Sands-Cliff-Geyser

10,000+

Number of hydrothermal features in Yellowstone National Park.

Morning Glory Hot Spring in winter

290

The number of waterfalls in the park.

Have a seat and marvel at the beauty of the Lower Falls from Artist Point in the Grand Canyon of the Yellowstone.

459 degrees Fahrenheit

The highest temperature recorded in a Yellowstone geothermal area, just 1,087 feet below the earth’s surface.

Grand Prismatic Hot Spring

60 – 110 minutes / 8,400 gallons / 204 degrees Fahrenheit

Old Faithful, Yellowstone’s most famous geyser, erupts every 60 to 110 minutes. The amount of water expelled during one of Old Faithful’s longer eruptions. Shorter eruptions can expel an estimated 3,700 gallons of water. The water temperature during an eruption has been measured at 204 degrees Fahrenheit!

Old Faithful Geyser

67

Number of mammal species that live within Yellowstone National park.

Bison with calf

285

The number of species of birds in the park, including 150 nesting species.

Trumpeter swans along the Yellowstone River in Hayden Valley.