The research of the Maehata Remains in Ebino city, Miyazaki Prefecture, conducted in 1979 for the construction of Kyushu Expressway, discovered ancient structural remnants considered to be a pathway where huge timbers seemed to have been dragged as well as ceramic ware pieces from the 16th century.
1979年（昭和54年）、九州自動車道の工事に際して行われた宮崎県えびの市の前畑遺跡の調査において16世紀の陶磁器片とともに大木を引いた経路と見られる遺構が発見された。