Kumano Shrine (熊野神社) is one of three Kumano Shrine located usui, Gunma. This shrine is very unique because it is located on the border line of Nagano and Gunma prefecture. On the Gunma side shrine is called Kumano Shrine, and Nagano side is called KumanoKotai Shrine. They both enshrined the same god and the origin is the same, but because this mountain pass was very important point for sengoku period, to avoid the duel, people built two shrine for both side in Edo Period.
Visitors Info.
There is parking.
Access
0. at Nagano Station
1. use JR Shinkansen to Karuizawa (33 min.)
2. use local bus to Usui Toge
20 min
New Wave Samurai Movie. 
映画好き集まれ！ 
Enshrined God: Izanami no Mikoto, Yamatotakeru no Mikoto
Legend said when Yamatotakeru no Mikoto had his great eastern expedition in 110, he had to stopped his company by deep smog at Usui Mountain pass. Then, Yata Crow appeared and led him to the to of mountain. At the top of mountain, he saw Sagami Bay, and he brought back his memory of his wife who sacrificed her life to the Sabami Bay for quieting down the ocean.