20 parks with hiking trail data
World's first national park. Geysers, hot springs, diverse wildlife.
Most visited NP. Ancient mountains, diverse wildlife, old-growth forest.
Home to the world's largest trees by volume — the giant sequoias.
Granite cliffs, waterfalls, giant sequoias, and biodiversity.
Dramatic alpine scenery, glaciers, and the Going-to-the-Sun Road.
Rainforest, alpine wilderness, and Pacific coastline in one park.
Blue Ridge Mountains, Skyline Drive, and Appalachian Trail.
Alpine tundra, 14,000-foot peaks, and pristine wilderness.
Mile-deep, 277-mile-long canyon carved by the Colorado River.
Iconic volcanic peak at 14,411 feet with 25 named glaciers.
Dramatic mountain range rising 7,000 feet above the valley floor.
Massive sandstone cliffs, emerald pools, and narrow slot canyons.
Where Mojave and Colorado deserts meet. Iconic twisted Joshua trees.
Where mountains meet the sea. New England's only national park.
Active volcanoes Kilauea and Mauna Loa. Witness volcanic creation in real-time.
Largest collection of hoodoos — fantastical spire-shaped rock formations.
Over 2,000 natural stone arches including the iconic Delicate Arch.
Hottest place on Earth. Below-sea-level basin, sand dunes, colorful badlands.
Dramatically eroded buttes and spires amid the largest mixed-grass prairie.
North America's highest peak (20,310 ft) and vast interior Alaska wilderness.