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What Is National Parks?

A national park is a protected area of land — sometimes water too — set aside by a government to preserve natural scenery, wildlife, and ecosystems for the public to enjoy. The idea is straightforward: some places are too important, too beautiful, or too ecologically significant to let anyone drill, mine, develop, or otherwise mess with them.

Where the Whole Idea Started

The concept traces back to 1872, when U.S. President Ulysses S. Grant signed the Yellowstone National Park Protection Act. Nobody had done anything quite like it before. The government essentially said: this land belongs to everyone, and we’re going to keep it that way.

Before Yellowstone, there were scattered efforts to protect special places. The Yosemite Grant of 1864 turned Yosemite Valley over to California for “public use, resort, and recreation.” But Yellowstone was different — it was federally managed from the start, and it established a template that spread worldwide.

By 1879, Australia had Royal National Park. Canada created Banff in 1885. New Zealand followed in 1887 with Tongariro. Today, more than 4,000 national parks exist across roughly 100 countries.

What Makes a National Park Different

Not every protected area is a national park. The International Union for Conservation of Nature (IUCN) classifies protected areas into six categories, and national parks sit in Category II — large natural areas where ecosystem processes are allowed to function with minimal human interference.

Here’s what typically sets them apart:

Strict protections. No logging. No mining. No commercial extraction. Hunting is usually banned or tightly controlled. Development is limited to roads, visitor centers, and campgrounds that support public access without wrecking the place.

Government management. A national park is run by a government agency — the National Park Service in the U.S., Parks Canada, SANParks in South Africa, and so on. Funding comes from taxpayers, entrance fees, and sometimes private donations.

Public access. Parks exist for people to visit. That’s a key difference from strict nature reserves (IUCN Category I), which might limit or ban public entry altogether.

Ecological significance. Parks are chosen because they contain something worth protecting — rare species, unusual geological formations, intact ecosystems, or landscapes of exceptional beauty.

The Numbers Are Staggering

The U.S. National Park System alone covers over 85 million acres across 63 designated national parks and hundreds of additional monuments, seashores, and recreation areas. In 2023, the system recorded roughly 325 million recreation visits.

Globally, the scale is even more impressive. Protected areas now cover about 17% of Earth’s land surface and 8% of the oceans, according to the UN Environment Programme. National parks represent a huge chunk of that coverage.

Some parks are enormous. Northeast Greenland National Park covers 375,000 square miles — larger than France and Spain combined. Others are tiny by comparison. Hot Springs National Park in Arkansas covers just 5,554 acres.

Why They Actually Matter

Parks aren’t just pretty places to hike. They do real ecological work.

Biodiversity refuges. As development swallows natural habitats, parks become some of the last strongholds for threatened species. Yellowstone protects grizzly bears, wolves, and bison. Kruger National Park in South Africa shelters the Big Five. Galápagos National Park preserves species found literally nowhere else on Earth.

Carbon storage. Forests and wetlands inside national parks absorb and store massive amounts of carbon dioxide. One study estimated that U.S. national parks store approximately 14.6 billion metric tons of carbon — worth an estimated $700 billion in carbon sequestration value.

Water protection. Many parks contain watersheds that supply drinking water to downstream communities. Yosemite’s Hetch Hetchy reservoir provides water to 2.7 million people in the San Francisco Bay Area.

Economic engines. Visitor spending near national parks generates serious money. In 2022, NPS visitors spent an estimated $26.4 billion in gateway communities, supporting over 378,000 jobs.

The Challenges Parks Face

For all their protections, national parks aren’t immune to problems.

Overcrowding. Some parks are being loved to death. Zion National Park implemented a shuttle system because traffic was destroying the canyon floor. Yosemite has experimented with reservation systems. The tension between public access and conservation is real, and it’s getting worse as outdoor recreation booms.

Climate change. Glaciers are melting in Glacier National Park — the park had 150 glaciers in 1850 and now has fewer than 30. Coral bleaching threatens marine parks worldwide. Wildfires are burning through parks with increasing intensity.

Underfunding. The U.S. National Park Service faces a maintenance backlog exceeding $22 billion. Trails crumble, historic buildings deteriorate, and infrastructure ages faster than budgets can keep up with.

Invasive species. Non-native plants and animals threaten ecosystems inside park boundaries. Burmese pythons in the Everglades have devastated native mammal populations. Cheatgrass in western parks changes fire patterns and crowds out native vegetation.

How Different Countries Handle It

The American model influenced everyone, but countries adapted the concept to their own situations.

Canada’s system includes 37 national parks and 10 national park reserves, managed by Parks Canada. The agency explicitly includes Indigenous perspectives in park management — a growing trend worldwide.

Costa Rica dedicates about 25% of its territory to protected areas, one of the highest percentages anywhere. This commitment has made the country a global ecotourism destination.

In Africa, parks like Serengeti (Tanzania) and Chobe (Botswana) protect some of the last great wildlife migrations on Earth while providing revenue through safari tourism.

Australia’s system reflects the continent’s ecological uniqueness. Kakadu National Park in the Northern Territory is simultaneously managed for conservation and as a living cultural site for Aboriginal Australians who have occupied the area for over 65,000 years.

The Debate Over Who Parks Are For

Here’s something most visitors don’t think about: many national parks were created by displacing Indigenous peoples from their ancestral lands. Yellowstone’s creation involved removing Shoshone, Crow, Blackfeet, and Bannock peoples. Glacier National Park was carved from Blackfeet territory. This history is uncomfortable, and conservation organizations are increasingly grappling with it.

Some countries are experimenting with co-management models where Indigenous communities share authority over park decisions. In New Zealand, the government returned ownership of Tongariro’s peaks to the Ngati Tuwharetoa iwi in 1993, and the park is now jointly managed.

Visiting Responsibly

If you’re heading to a national park, the basics matter more than you’d think. Stay on marked trails — a single shortcut can take decades to heal in fragile alpine environments. Pack out everything you bring in. Don’t feed wildlife. Keep your distance from animals (at least 100 yards from bears and wolves in most U.S. parks).

And frankly, consider visiting during off-peak seasons. You’ll have a better experience, and you’ll put less stress on the park’s resources. September and October are often the sweet spot — fewer crowds, pleasant weather, and autumn colors in many locations.

National parks represent one of the best ideas any government has ever had. They’re not perfect, and the tensions between access, funding, and preservation will never fully resolve. But the alternative — a world where every beautiful, ecologically important field gets turned into a parking lot or a mine — is far worse.

Frequently Asked Questions

How many national parks are there in the United States?

The U.S. has 63 designated national parks managed by the National Park Service, spanning over 85 million acres. The most visited is Great Smoky Mountains National Park, which sees over 12 million visitors annually.

What is the difference between a national park and a national forest?

National parks prioritize conservation and recreation with strict protections — no logging, mining, or hunting. National forests allow multiple uses including timber harvesting, grazing, and hunting alongside recreation. Parks are managed by the National Park Service; forests fall under the U.S. Forest Service.

What was the first national park in the world?

Yellowstone, established in 1872 by President Ulysses S. Grant, is widely considered the world's first national park. It set the precedent for government-protected wilderness areas, inspiring similar efforts in Australia, Canada, New Zealand, and dozens of other countries.

Further Reading

• National Park Service
• IUCN Protected Areas
• UNESCO World Heritage - Natural Sites
• National Geographic - National Parks