It has both temperate and tropical plants. The park is known for its rich bird life. It is also the only place in the world where alligators and crocodiles exist side by side. Glacier National Park Glacier National Park is located in Montana. The beautiful scenery of the park is the result of glacial action.
Hikers can climb the hills to stand on the glaciers that remain today in the park.
The Grand Canyon is located in northern Arizona and includes 277 miles of the Colorado River. It is a world heritage site. The Canyon is one of the most spectacular examples of erosion in the world. There is a special section on information for kids at this site. Mammoth Cave National Park Mammoth Cave in central Kentucky is the longest cave in the world.