Arkansas is a state located in the southern region of the United States of America. Arkansas shares a border with six states, with its eastern border largely defined by the Mississippi River. Its diverse geography ranges from the mountainous regions of the Ozarks and the Ouachita Mountains, which make up the U.S. Interior Highlands, to the eastern lowlands along the Mississippi River. The capital and most populous city is Little Rock, located in the central portion of the state.
The name Arkansas is a French pronunciation of a Quapaw word meaning "land of downriver people". The pronunciation "arkansaw" was made official by an act of the state legislature in 1881.
The Little Rock-North Little Rock-Pine Bluff Combined Statistical Area had 829,032 people in the 2006 census estimates and is the largest in Arkansas.
Several global companies are headquartered in the northwest corner of Arkansas, including Wal-Mart (the world's largest public corporation by revenue in 2007), J.B. Hunt and Tyson Foods. This area of the state has experienced an economic boom since the 1970s as a result.
In recent years, automobile parts manufacturers have opened factories in eastern Arkansas to support auto plants in other states. Additionally, the city of Conway is the site of a school bus factory.
Tourism is also very important to the Arkansas economy; the official state nickname "The Natural State" was originally created (as "Arkansas Is A Natural") for state tourism advertising in the 1970s, and is still regularly used to this day.