is an open-air museum in Sapporo, Hokkaidà Â, Japan. It opened in the Nopporo Shinrin Kà Âen Prefectural Natural Park in 1983. It includes fifty-two historical structures from the "frontier days" of the Meiji era to the Shà Âwa era that have been relocated and reconstructed or recreated, divided into four zones: town (with thirty-one buildings), fishing village (four buildings), farming village (fourteen buildings), and mountain village (three buildings). The museum is notable for having a rare narrow gauge horse-drawn tramway.