The United States National Park System protects over 85 million acres of America's most spectacular landscapes — from the geysers of Yellowstone to the ancient sequoias of Yosemite, from the Everglades' vast wetlands to Denali's towering peak. With 63 designated national parks spread across 30 states and two territories, the system represents the best of America's natural heritage. But can you match each park to the state where it's found?

This quiz presents you with 20 randomly selected national parks and asks you to click their home state on the map. Some are easy — most people know the Grand Canyon is in Arizona and Yellowstone is primarily in Wyoming. But where exactly is Acadia? What state claims Mammoth Cave? And can you tell the difference between Arches and Joshua Tree when both are in the desert Southwest? The geographic spread of national parks mirrors the incredible diversity of American landscapes.

National parks tell the story of America's relationship with its wild places. The idea of preserving wilderness for public enjoyment — born at Yellowstone in 1872 — was a revolutionary concept that spread worldwide. Today, national parks generate over $42 billion in economic activity annually and welcome more than 300 million visitors. They protect endangered species, preserve ancient geological formations, and provide outdoor recreation for millions. Whether you're a seasoned park visitor or an armchair explorer, this quiz will challenge your knowledge of where America's greatest natural treasures are located.