Almost all US national parks have developed campgrounds and allow backcountry camping. We've rounded up the 10 most popular national parks for your campers.
1. Yellowstone National Park.
2. Black Canyon of the Gunnison National Park
3. Rocky Mountain National Park.
4. Kings Canyon National Park.
5. Mount Rainier National Park.
6. Joshua Tree National PaGreat Sand Dunes National Park & Preserverk.