Omine Okugake-michi, which was originally opened as the road for the place of the ascetic practices for Shugendo (Japanese mountain asceticism-shamanism incorporating Shinto and Buddhist concepts), connects Mt. Yoshino in Nara and Kumano Sanzan, and is the steepest route in Kumanokodo road.
大峯奥駈道は、奈良吉野山と熊野三山を結ぶ、もとは修験道の修行場として開かれた道であり、熊野古道の中で最も険阻なルートをなす。