【地形旅】～東京23区唯一の渓谷『等々力渓谷』は今どうなってる？その地形と現状を旅していく。2025年9月氾濫した谷沢川付近～

This time, we'll be exploring Todoroki Valley, the only valley in Tokyo's 23 wards. [Neighboring Property] The "lonely, mysterious convex area" next to Todoroki Valley has a terrifying story...    • 【謎の凸地】～等々力渓谷の隣にある『ポツンと残った謎の凸地』には怖い逸話があった・・・～   Beyond Todoroki Valley...    • 【地形旅】～『等々力渓谷』のその先には何がある？　多摩川で分断された村があった？20...   *Satellite images are processed from Google Maps and Geospatial Information Authority of Japan (aerial photographs). Elevation maps and standard maps are processed from Geospatial Information Authority of Japan (map tiles). *The map was created by overlaying topographical maps and visual inspection and tracing. Therefore, there may be discrepancies in the locations of rivers and other locations. Thank you for your understanding. *As this is a personal project, please understand that there may be misreadings and typos. *Membership has been launched. I will be posting videos that explore the history and topography of a certain place with maps. I will be uploading several videos per month, so please check them out.    / @chizutabi365   ※Maps ・Standard maps, elevation maps, topographic classification maps, etc. Geospatial Information Authority of Japan website https://www.gsi.go.jp/ ・Historical maps (based on Geospatial Information Authority of Japan maps) Imasen on the web website https://ktgis.net/kjmapw/ ※References ・Setagaya Ward website https://www.city.setagaya.lg.jp/02075... ・Tokyo Walk website https://tokyo-sanpo.com/todoroki-keik... ・TOKYO LOCAL Website https://www.tokyo--local.com/spot/tod... ・Tokyo Trip https://tokyo-trip.org/spot/visiting/... ・Manganji Temple and Todoroki Fudoson Website https://www.manganji.or.jp/fudouson/ ・Tokyo Trip https://tokyo-trip.org/spot/visiting/...