The Ark-La-Tex (also known as Arklatex, ArkLaTex, or more inclusively Arklatexoma) is a U.S. socio-economic region where Arkansas, Louisiana, Texas, and Oklahoma intersect. The region contains portions of Northwest Louisiana, Northeast Texas, South Arkansas, and the Little Dixie area of Oklahoma. The region is geographically centered on the Arkansas/Texas stateline at the point of the Federal courthouse and Post Office in downtown Texarkana. Other important cities in the region include Shreveport, in Northwest Louisiana, Marshall in Northeast Texas, and Natchitoches, Louisiana.