What Are National Parks?

Protected Places for Everyone

National parks are areas of outstanding natural beauty, unique geology, or ecological importance that the U.S. government has set aside and protected by law. Unlike private land, national parks belong to every American — and every visitor from around the world. You can hike their trails, camp under their skies, and explore their wonders, but the land itself is preserved so future generations can experience it too.

How They Started

In 1872, President Ulysses S. Grant signed a law creating Yellowstone as the world's first national park. The idea was revolutionary: instead of selling beautiful land to private owners, the government would protect it for public enjoyment. The National Park Service (NPS) was created in 1916 to manage these parks. Today there are 63 national parks across 30 states and territories, covering over 85 million acres — an area larger than the entire country of Italy.

Famous Parks

Grand Canyon (Arizona) features a mile-deep gorge carved by the Colorado River over 5–6 million years, with rock layers exposing nearly 2 billion years of Earth's geological history. Yellowstone (Wyoming/Montana/Idaho) sits on a supervolcano and contains more geysers than anywhere else on Earth, including Old Faithful. Yosemite (California) is famous for towering granite cliffs, giant sequoia trees, and spectacular waterfalls. Great Smoky Mountains (Tennessee/North Carolina) is the most visited park, attracting over 12 million visitors per year.

Why Parks Matter

National parks protect biodiversity — they serve as habitats for thousands of plant and animal species, many of which are threatened or endangered. Grizzly bears, wolves, bison, California condors, and Florida manatees all depend on protected parkland. Parks also preserve important cultural and historical sites, from ancient cliff dwellings to Civil War battlefields.

Conservation Challenges

National parks face real threats: climate change is melting glaciers in Glacier National Park and increasing wildfire risk across the West. Overcrowding strains popular parks — some now require reservations during peak season. Air and water pollution from surrounding areas doesn't stop at park boundaries. Supporting national parks means advocating for clean air, responsible visitation, and adequate funding for the rangers and scientists who protect these irreplaceable places.

Why This Matters

America's national parks protect some of the most spectacular landscapes and ecosystems on Earth — from the Grand Canyon's mile-deep gorge to Yellowstone's geysers to the ancient forests of the Redwoods. Learning about national parks connects children to natural science (geology, ecology, biology), American history (the conservation movement, Indigenous land stewardship), and civic values (the idea that some places belong to everyone and should be preserved for future generations).

National parks also inspire a personal connection to nature. Studies show that children who spend time in natural settings develop better physical health, emotional well-being, and environmental stewardship. Even learning about parks from afar — through photos, documentaries, and virtual tours — can ignite a lifelong love of the outdoors and an appreciation for conservation.

Where Kids Get Stuck

The most common confusion is mixing up national parks with other protected lands. National parks, national forests, national monuments, state parks, and wildlife refuges are all different designations with different purposes and management agencies. National parks, managed by the National Park Service, generally emphasize preservation and recreation, while national forests may allow logging and hunting. A simple chart comparing these categories helps students keep them straight.

Another difficulty is understanding why parks were created. Children may think parks have always existed, but the national park concept was a deliberate human decision — starting with Yellowstone in 1872. Learning about the conservation movement and figures like John Muir and Theodore Roosevelt adds depth to the subject and connects science to social studies.

Students also struggle with the tension between preservation and access. Parks face challenges like overcrowding, pollution, wildlife disruption, and climate change. Discussing how to balance public enjoyment with environmental protection introduces children to real-world problem-solving and policy thinking.

Try This at Home

• Virtual park tours — Many national parks offer virtual tours and webcams online. "Visit" three parks and compare their landscapes, climates, and wildlife.
• Park passport — Create a passport booklet with a page for each park you learn about. Include a drawing, key facts, and what makes it special. "Stamp" each page when you complete it.
• Ecosystem comparison — Compare the ecosystem of a desert park (Joshua Tree) with a mountain park (Rocky Mountain) and a coastal park (Acadia). How do plants and animals differ?
• Design a park — If you could create a new national park, where would it be and what would it protect? Draw a map, write the rules, and design the entrance sign.

For more ideas, see our guide: Benefits of Outdoor Learning.

Last reviewed: May 2026