Sonohyan Utaki Ishimon is located to the rear of Shurei Gate, on the left.

At present the stone gate remains, which widens out into the adjacent forest.

Except for the wooden doors, the gate is made entirely of stone; there is a Chinese-style gate in the center. This is a single course structure with the entrance at the side parallel with the ridge. To the right and left are hewn stone walls.

The roof of the gate is in cusped bargeboard with tile roof shingles and around the eaves are rafters, and both ends of the roof are decorated with terminal tiles in the shape referred to as Shibi, an imaginary sea animal.

In the center of the ridges are gable ornaments in a flaming jewel motif, expressing characteristics of wooden structures.