The highest sand dunes in North America are found in the Great Sand Dunes National Park of Colorado. Take this quiz for a virtual tour of one of America's newest and most majestic national parks.
The park lies beneath the Sangre de Cristo ("Blood of Christ") mountains.
It is in Southern Colorado.
It was established in 2000.
It covers an area of 84,670 acres (28,318 hectares).
It is a combination of sand dunes, desert valley, alpine tundra, and forest.
They extend over more than 30 square miles (78 square kilometers).
Humans walked the area about 9,000 years ago.
They are in the inner dunefield.
They contain five billion cubic meters of sand.
Winds from the southwest and northeast blow loose sand into the valley.
They are over 13,000 feet (3,962 meters) high.
The Great Sand Dunes tiger beetle and the giant sand treader camel cricket are found nowhere else.
The forests are populated by spruce, pine, aspen, and cottonwood.
High Dune is the tallest visible from the visitors' center, although it's not the tallest in the park.
Its elevation is 650 feet (198 meters).
The Zapata Falls gush out of a rock crevasse into a pool of cold water.
You will need to climb the steep trail up to Music Pass.
They are the largest dunes and were formed by winds blowing in opposite directions.
These half-moon shaped dunes resulted from ideal conditions of flat land, unidirectional wind and no vegetation.
They have rhythmic waves caused by a pulsating flow.