Wind cave national park is known for its frost work.
It is best known for its hoodoos.
hot springs
Australia's first national park is now known as the Royal National Park.
Kakadu National Park
Ellesmere Island National Park also known as Quttiniraaq National Park
Mesa Verde National Park
Yellowstone National Park was first established in North America; Canada's first (and oldest) national park is the well-known "Banff National Park", located in Alberta, which was established in 1885.
It has the best walk
There is a national park in Gettysburg. It is called the Gettysburg National Military Park. The park is open year round and has a well known and popular museum.
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Redwood Trees
Three of the best known national parks in the Northern Territory are:Kakadu, Australia's largest national parkNitmiluk National Park, which contains Katherine GorgeUluru - Kata Tjuta National Park in central Australia, 450km from Alice SpringsA more comprehensive list of national parks in the Northern Territory can be found at the related link below.