01 / Valley
The roar of a waterfall is also saidto have given Todoroki its name.

Todoroki Valley was formed by the Yazawa River, and its cliffs show layers including Kanto loam. The ward writes that the name Todoroki is also said to have arisen because a waterfall roared here. Tomb niches of the late Kofun period line the cliff; Tunnel Tomb No. 3 is a Tokyo Metropolitan Historic Site.
- 1999: Tokyo Metropolitan Place of Scenic Beauty (Todoroki Valley)
- Feb 6, 1975: Tokyo Metropolitan Historic Site (Tunnel Tomb No. 3)
- Tunnel tombs date to the late Kofun period, 7th century (ward)

