Magnolia is a city in Columbia County, Arkansas, United States. As of the 2010 census the population was 11,577. The city is the county seat of Columbia County.

U.S. Route 79 is a United States highway in the Southern United States. The route is officially considered and labeled as a north–south highway, but its path is actually more of a diagonal northeast–southwest highway. The highway's northern/eastern terminus is in Russellville, Kentucky, at an intersection with U.S. Route 68 and KY 80. Its southern/western terminus is in Round Rock, Texas, at an interchange with Interstate 35, ten miles (16 km) north of Austin. US 79, US 68, and Interstate 24/US 62 are the primary east–west access points for the Land Between the Lakes recreation area straddling the Kentucky/Tennessee border.