菅谷寺, Buddhist temple in Shibata, Japan

Kankoku-ji, commonly called Sugatani Fudōson, is a Shingon Daigo-ha temple on Mount Shohō in the Sugatani district of Shibata, Niigata Prefecture. It is counted among Japan's three great Fudō Myōō sites, and pilgrims come from many regions seeking healing for eye ailments. Its main image is a Fudō Myōō statue said to have been brought from Tang China by Saichō.

According to temple tradition, the monk Gonen, uncle of Minamoto no Yoritomo, fled Mount Hiei under Taira pressure carrying the head of a Fudo Myoo statue from Mudo-ji, and in 1185 (Bunji 1) built a hall in Echigo. The Azuma Kagami records that in 1195 Gonen met Yoritomo in Kamakura and spoke of founding a temple at Sugatani in Kaji-no-sho, Echigo, which is identified with this temple.

The temple is commonly called Sugatani Fudōson, after its main image of Fudō Myōō, said to have been brought from Tang China by Saichō and kept at Mount Hiei before the founder carried its head to Echigo. Pilgrims come from many regions seeking healing for eye ailments.

The temple stands in the Sugatani district of Shibata; the nearest stations are Shibata and Kaji, and the Shibata community bus stops at Sugatani, a short walk away. From the Taisho era a shared motor service run by the Sugatani Automobile Association linked Shibata and Sugatani for pilgrims.

The temple is also known as Sugatani Fudōson, and its main image of Fudō Myōō is said to have been brought from Tang China by Saichō and later carried to Echigo by the monk Gonen, who founded the temple in 1185. Pilgrims come seeking relief from eye ailments.