U.S. National Parks Quiz

Old Faithful is the crown jewel of Yellowstone National Park in Wyoming, which became the world's first national park in 1872. It earned its name because early visitors marveled at how reliably it erupted.

Half Dome towers over Yosemite Valley in California and has been a symbol of Yosemite National Park since the park was established in 1890. Its sheer northwest face is one of the most recognizable rock formations in the world.

Everglades National Park occupies the southern tip of Florida and was designated a UNESCO World Heritage Site in 1979. It is home to rare and endangered species including the Florida panther and American crocodile.

The Colorado River carved the Grand Canyon over roughly 5 to 6 million years, exposing rock layers that tell nearly two billion years of Earth's geological history. The canyon stretches about 277 miles long and reaches a mile deep.

Acadia National Park sits on Mount Desert Island along the coast of Maine and was the first national park established east of the Mississippi River. From October through early March, Cadillac Mountain is the first place in the continental U.S. to see the sunrise.

The tall, thin spires of rock at Bryce Canyon are called hoodoos, formed by the weathering of Claron limestone over millions of years. Bryce Canyon has the largest concentration of hoodoos anywhere on Earth.

Hyperion, discovered in 2006, stands about 380 feet tall and lives within Redwood National and State Parks in northern California. Its exact location is kept secret to protect it from excessive foot traffic.

Mammoth Cave has more than 400 miles of surveyed passageways, making it the longest known cave system in the world by a wide margin. Archaeologists have found evidence that Native Americans explored the cave over 4,000 years ago.

Denali stands 20,310 feet above sea level, making it the tallest mountain in North America. Located in Alaska, it is sometimes called the continent's 'High One,' which is the meaning of its Athabascan name.

Great Smoky Mountains National Park sits on the border of Tennessee and North Carolina and is the most visited national park in the United States, welcoming over 12 million visitors in recent years. The park gets its name from the natural fog that often blankets the mountains.

About 7,700 years ago, the volcano known as Mount Mazama erupted so violently that its summit collapsed inward, forming a caldera that eventually filled with rainwater and snowmelt to become Crater Lake. The lake reaches a depth of about 1,943 feet.

The Narrows in Zion National Park, Utah, is one of the most iconic hikes in the American Southwest, where hikers wade through the Virgin River between towering sandstone walls that can be as narrow as 20 feet wide. The walls rise up to 1,000 feet overhead.

Arches National Park in Utah contains over 2,000 natural stone arches, including the 52-foot-tall Delicate Arch, which appears on Utah's license plate. The arches were formed by water seeping into rock cracks and slowly dissolving the sandstone.

Mesa Verde preserves over 5,000 archaeological sites built by the Ancestral Puebloans, sometimes called the Anasazi, who inhabited the region from about 600 to 1300 A.D. Their most spectacular structure, Cliff Palace, contains about 150 rooms and 23 kivas.

Skyline Drive runs the entire 105-mile length of Shenandoah National Park along the crest of the Blue Ridge Mountains, offering 75 overlooks with sweeping views of the Shenandoah Valley. It was built during the Great Depression in the 1930s.