The river is forced to flow underground again in the south of Oshikoji-dori Street in front of Nijo-jo Castle, flowing almost entirely under Horikawa-dori Street except barely appearing on the ground in the east of Nishi Hongwan-ji Temple.
二条城前の押小路通から南は再び暗渠となり、西本願寺の東でわずかに地上に現れるほかは堀川通の地下を流れる。