The Roundtop Filling Station is a former gas filling station located off the Jacksonville Highway, in Sherwood, Arkansas. It was built in 1936 and owned from 1957 by Wallace David “Happy” Williford until its closure in 1981. It is now preserved as a historic site following restoration completed in 2015. The Roundtop was featured in The Last Ride, a 2010 movie about the last days of country singer, Hank Williams, Sr, starring Henry Thomas and Kaley Cuoco.