Registered Tangible Cultural Properties of Japan

The Sixth Otofuke River Bridge of the Former JNR Shihoro Line in Kamishihoro, built in 1938, crosses the river on seven filled-spandrel arches over 96 metres.

The Nukabira River Bridge of the Former JNR Shihoro Line, built in 1955 by Lake Nukabira in Kamishihoro, curves on four concrete arches and carries a nature trail.

Horoka Station Platform of the Former JNR Shihoro Line in Kamishihoro, built in 1939, is a low concrete strip 61 metres long, with track and points still beside it.

The yard tracks of Tomiuchi Station on the Former JNR Tomiuchi Line in Mukawa, Hokkaido, laid in 1923, run 380 metres as double track on rails from three countries.

Tomiuchi Station Building on the Former JNR Tomiuchi Line in Mukawa, Hokkaido, is a 1923 timber station house with a points-lever cabin beside its ticket barrier.

The stone platform of Tomiuchi Station on the Former JNR Tomiuchi Line in Mukawa, Hokkaido, built in 1923, runs about 75 metres behind the station building.

A Taisho house in Hobetsu, Mukawa, built by an oil prospector turned farmer from timber off his own land, dismantled in 2003 and rebuilt beside the town museum.

A hexagonal cabin on a brick cylinder, built in 1909 to supply a Sapporo army garrison. Registered in 2001, it stands offshore in Nishioka Park, free to view.

Rebuilt in brick after a 1951 fire, this Ebetsu clay pipe works made drainage pipe and flue liners. Registered in 2019, it now trades as EBRI, free to enter.

Built the year fire swept Hakodate in 1934, this timber house wraps a courtyard and wears battened clapboard. Registered in 2016. Private: view the exterior only.

A single-arch reinforced-concrete overpass carrying a footpath over the Hokutan colliery's coal railway at Yubari, its deck tilted to clear larger rolling stock.

A reinforced-concrete viaduct of seven semicircular arches, each spanning six metres, built in 1951 to carry the Takamatsu waste-rock line at the Yubari colliery.

A straight concrete tunnel seventy-three metres long, built in 1951 for the skip cars that hauled waste rock along the Takamatsu line, with portals at each end.

The west portal of the belt-conveyor tunnel on the Takamatsu waste-rock line: a concrete face nearly nine metres wide framing a modest semicircular opening.

The brick portal of the Tenryu pit's material-haulage incline of 1900, its walls five bricks thick framing a semicircular arch with pilasters and a name plaque.

The brick portal of the Tenryu pit's man-car incline, where carriages took miners underground, eleven metres wide with a conical keystone, pilasters and wing walls.

Step inside Japan's only publicly walkable coal mine: a 180-metre brick-arched tunnel in Yubari, Hokkaidō, with a real coal seam to touch, vintage shearers, and an 1888 origin story.

Built in 1919 in Ebetsu, Hokkaido, this 57-square-metre stone building housed the town's first bank until 1966. Registered as a cultural property in February 2002.

This 1928 timber relay station in Nanporo, Hokkaido, lodged around 550 travellers a year until a railway closed it in 1931. Registered in 2006; exterior only.

A 94-metre coal railway bridge of about 1945 in Ashibetsu, Hokkaido, with a diesel locomotive still standing on its deck. Registered as a cultural property in 2009.