How many main land regions does North Dakota have and what are they?

There are three main land regions in North Dakota:

1) The Red River Valley: This region is located in the eastern part of the state and is formed by the Red River of the North. It is a flat, fertile plain that is known for its agriculture.

2) The Missouri Plateau: This region is located in the western part of the state and is characterized by rolling hills and plateaus. It is also home to the state's highest point, White Butte, which is 3,506 feet above sea level.

3) The Turtle Mountains: This region is located in the north-central part of the state and is characterized by a series of low, rounded hills. It is a popular destination for hiking, camping, and fishing.