It is said that this was a remain of a teahouse built by villagers of Nanairo Village down the mountain and also called Haccho-jaya Teahouse because it was haccho (about 872 meters) away from the pass.
これは下方の七色集落の人が茶屋を出した跡だと言われ、峠から八丁の距離にあることから八丁茶屋とも呼ばれた。