10 Fun National Park Facts.

Isle Royale NP: Fewer visitors per year than Disneyland gets in a single day.

Capitol Reef NP: Named for white domes that resemble the U.S. Capitol.

Lassen Volcanic NP: All four types of volcanoes exist in one park.

Congaree NP: Home to some of the tallest hardwood trees in the U.S.

Black Canyon of the Gunnison NP: So steep and narrow that sunlight barely reaches the bottom.

Dry Tortugas NP: Accessible only by boat or seaplane.

Great Basin NP: One of the darkest night skies in the lower 48 states.

Guadalupe Mountains NP: Contains the highest peak in Texas.

North Cascades NP: More glaciers than any other U.S. park outside Alaska.

Voyageurs NP: Over one-third of the park is water.

Do you have a favorite NP Fact?