the natural state
Arkansas is in the southern region.
Northeast
I would refer to it as a mid-west region.
The Arkansas River Valley is located in Arkansas
midwest region
The mountain region in Arkansas are called, "Ozark Mountains"
Northwest Arkansas
The southeast region.
The United States Census Bureau defines four regions - Northeast, Midwest, South and West. Arkansas is in the South Region.
Not sure about the word "Arkansas," but the Ozark Mountain region in the northwest part of the state was named after the original French term "Aux Arcs," meaning "with bows." a reference to the Native American tribes that lived there.
Three major cities in the Ouachita region are Hot Springs in Arkansas, Monroe in Louisiana, and Texarkana which straddles the border of Arkansas and Texas.
The State of Arkansas is in the southern region of the US. Arkansas is a beautiful state.