01 / Okuyukiusu transport facilities
Three eras of transport stand in one place,a JSCE Selected Civil Engineering Heritage.

Beside the former Okuyukiusu relay post (1910-1930) stand Okuyukiusu Station on the national railway's Shibetsu Line (1933-1989) and a stop on the Bekkai Village light railway (1963-1971). In FY2024 the Japan Society of Civil Engineers certified them, calling them the only group where each era's transport system survives in one place.
- Relay post, 1910-1930 (Agency for Cultural Affairs)
- Okuyukiusu Station, 1933-1989 (town)
- Selected Civil Engineering Heritage (FY2024)
