Kumano Koutai Shrine (the inner shrine of Ise Shrine)
A shrine located on the border of a prefecture, a rarity in Japan.
Located at an elevation of 1200 m above the summit of Usui Pass, this ancient shrine is called "Kumano Koutai Shrine" on the Nagano Prefecture side and "Kumano Shrine" on the Gunma Prefecture side, and is said to have been built by Yamatotakeru. It is designated as a special shrine in Shinano-kuni.
The shina tree, which is more than 1,000 years old, has long been worshipped as a sacred tree for good fortune and matchmaking.