On this edition of "journeys in japan" we visit the southwestern foot of Yatsugatake, a chain of mountains extending 30 kilometers from north to south on the border of Nagano and Yamanashi Prefectures. About 5,000 years ago, a prehistoric culture known as the Jomon flourished around the lower slopes. Remnants of the Jomon have been discovered at more than 300 sites in the area. Our reporter Peter MacMillan meets residents of mountainous communities, discovers their way of life, and traces the footsteps of the Jomon people hidden behind it. At museums adjacent to excavation sites, he marvels at the artistic quality of objects created by the Jomon people, such as clay figurines and earthenware vessels. He also treks through the Kirigamine plateau to reach its highest point-Kurumayama (1625m), enjoying the beautiful natural scenery on the way. Researchers believe the Jomon people visited the plateau frequently.