U.S. Highway 63 is a north-south U.S. highway that begins in Ruston, LA. In the US state of Arkansas the highway enters the state from Louisiana concurrent with US 167 in Junction City. The highway runs north through the eastern part of the state, serving rural areas of South Arkansas and the Arkansas Delta, as well as Pine Bluff and Jonesboro. The highway exits the state at Mammoth Spring traveling into Missouri.

U.S. Route 167 is a north-south United States Highway within the U.S. states of Louisiana and Arkansas. It runs for 500 miles (800 km) from Ash Flat, Arkansas at U.S. Route 62/U.S. Route 412 to Abbeville, Louisiana at Louisiana Highway 14. It goes through the cities of Little Rock, Arkansas, Alexandria, Louisiana, and Lafayette, Louisiana.