Where is the tallest freestanding sand dune in the U.S.?

Here is the question :

WHERE IS THE TALLEST FREESTANDING SAND DUNE IN THE U.S.?


Here is the option for the question :

  • Missouri
  • North Carolina
  • Idaho
  • New Mexico

The Answer:

And, the answer for the the question is :

Idaho

Explanation:

[STC00297] The Great Sand Dunes in southern Colorado are nearly 700 feet tall, making them the tallest sand dunes in the United States.

However, the dunes in Bruneau Dunes State Park in southwestern Idaho are the tallest freestanding dunes (meaning they are not part of a dune system).

The dunes here extend up to 470 feet in height.

They are the only dunes in the Western Hemisphere to have formed close to the middle of a basin, while all other dunes form along the perimeter of a basin.

The origin of these dunes is thought to have begun during a time of inundation approximately 15,000 years ago.

They do not move like other types of dunes do and so remain stationary.