This mountain range stretches all the way from north to south through the states of Montana, Wyoming and Colorado.
This is the number of park sites in the United States National Park System.
422
This is a mountain where hot rock and lava come up from under the ground.
Volcano
The Great Plains
These hills in Kansas are home to beautiful wildflowers and butterflies.
Flint Hills
This national park in Utah looks like a playground for a giant with reddish rocks that look like arches and some that are flat on top called mesas.
Arches National Park
In this landform it is very hot and almost never rains. Animals like snakes and tortoise live here.
Desert
These mountains run along the eastern part of the United States from Maine down to Georgia.
Appalachian Mountains
The Colorado River runs through this national park in Arizona which is almost 300 miles long.
Grand Canyon
A cave is a hollow space underground that's big enough for a person to walk or crawl into. This is the longest cave in the world located in Kentucky.
Mammoth Cave
This volcano in Washington State erupted in the late 1800's and then again in 1980.
Mount St. Helens