Kamaishi Station Area (Former Steelworks) about 50 years ago and today

History of Kamaishi Station Area (Former Steelworks)

The only old photograph available for this location is a single one from 1974-78. Because you cannot go back and forth across many eras to follow the changes, reading that one photograph closely becomes meaningful. It shows a steelworks that fills the bottom of a valley without gaps. There are blast furnaces and factory buildings, tall chimneys, equipment built in the open air, and many tracks threading between them. The texture value of the image is very high, at 59.7, and the numbers too show that this was a surface of heavy industry with steel frames and equipment densely lined up.

The row of elevations shows why it is the bottom of a valley. The center of the location is 6.7 m, the south 5.1 m, the east 4.1 m and the west 4.2 m, all only slightly above sea level. But the measuring point to the north suddenly jumps to 43 m. In the Sanriku landscape, where mountains press down to the coast, the only land that can be used flat lies along the valleys, and even this valley ends in a slope right away on its north side. The scarcity of usable surface decides the entire layout of this town.

Iron, forest and bay together

The reason iron took root in this land is that three things were close at hand together. They were mountains containing iron ore, forests where charcoal for fuel could be burned, and a bay from which iron could be shipped out. If they had been far apart, the effort of transport would have tipped the balance, but in Kamaishi they all fit within a few ri (a ri is about 3.9 km). In 1857, at Ohashi inland, Oshima Takato lit a Western-style blast furnace and succeeded in obtaining pig iron from iron ore. It is regarded as the first case in the country of a method extracting iron from ore rather than iron sand, and it is the basis for linking the birth of modern ironmaking to this place.

In 1880, a government-run ironworks began operating. A railway for carrying iron ore from the mines was laid at the same time. It was a line built not to carry people but to make iron, and it is among the very earliest railways in the country. However, the government-run enterprise did not last long and reached a dead end within a few years. It was taken over by private hands, and by the efforts of Tanaka Chobei and others it reached stable operation in the latter half of the 1880s. The sequence in which the state started it and let it go, and a merchant rebuilt it, first determined the character of this steelworks.

Houses pushed onto the slopes

If a large factory is placed in a valley, the places where people live are pushed out onto the remaining land. In Kamaishi, the factory occupied the bottom, and houses clung tightly to the slopes rising from its edges. The shape of the town follows the terrain and, at the same time, the shape of the factory. Seeing in the 1974-78 photograph how a dense cluster of small roofs begins where the rows of buildings end, you can tell that this relationship appears directly in the frame.

Being a factory town took on a different meaning in wartime. In 1945, Kamaishi was shelled twice by naval guns from the sea, and the steelworks and the urban area suffered heavy damage. Even so, ironmaking started again, and in the first half of the 1960s the city's population passed 90,000. A dense industrial city stood here, with a port, a factory and a railway packed into a single valley.

In this period, the steelworks' rugby team, more than the iron itself, carried Kamaishi's name across the country. From the end of the 1970s to the mid-1980s it won the national championship seven years in a row and was called "the Iron Men of the North". A team made up mainly of people working at the factory stayed the best in Japan, and this is spoken of as a symbol of an era when the company, the town and the sport were one. The 1974-78 photograph shows the valley just before that run of titles began.

Precisely because there is only one photograph, it is worth looking at it section by section in order. In the middle of the valley, large buildings line up with their long sides aligned to the direction of the valley. The roofs are all straight-lined and evenly bright. Many thin lines run between the buildings. They are tracks for moving freight cars inside the factory. Here and there cylindrical structures and tall chimneys stand, and differences in height can be read from the lengths of their shadows. If you move your eye to the sea side, there are stretches where a straight line that looks like a quay and its boundary with the water can be seen. The frame holds a lot of information because each of the things shown is small, and there are many of them.

The valley where the fire went out

The fire of the blast furnace went out in 1989. In a steel industry that had switched to imported raw materials, production was gathered into wide waterfront works where large ships could berth directly. The way Kamaishi came to be, carrying ore from the mountains and operating in a narrow valley, became a disadvantage in that trend. However, even though the blast furnace was shut down, the steelworks itself did not disappear. The process of making wire rod remained. It is more accurate to say that the valley lost the blast furnace and the huge complex of equipment that surrounded it.

Dismantling the equipment takes time. It is work that removes, in turn, the furnace, the long trestles carrying raw materials and countless pipes, and for the several years until it became flat ground, a state in which the bottom of the valley was emptying out continued. Nor is it a place where the next users line up right away, like a former site in a city center. It is a situation in which only flat land was left behind in an industrial city whose population had begun to fall. The blank came less from a delay in planning than from the conditions of the land itself.

A surface that came undone

In the photograph as of 2026, surfaces of flat roofs and pavement spread across the bottom of the valley. Buildings for commercial and public uses stand around the station, and parking lot surfaces fill the spaces between them. With fewer tall structures, the frame looks emptier than in 1974-78. On the railway side, the northern and southern lines of the Sanriku Railway were joined in 2019, and Kamaishi became a station partway along the Rias Line. In the 2011 earthquake the low parts of the urban area were damaged by the tsunami, and the very long breakwater built at the mouth of the bay was also badly damaged and has since been rebuilt. Because this is low ground near the sea, it is worth checking the range of expected flooding on the hazard map the city has published.

Comparing the images in numbers makes it clear that the change at this location runs in the opposite direction. The texture value fell from 59.7 to 43.0, and the mean pixel difference reached 48.2. On much land, fields and empty lots are replaced by buildings and the value rises. Here, densely packed equipment was taken out and the surface became simpler. The size of the difference shows how sharp the change was, and the drop in texture shows that the change was in the direction of coming undone.

The reference point for official land prices (Chika Koji) is a residential site in Nakatsuma-cho 2-chome, about 1.3 km from the location. From 70,000 yen per square meter in 1992 it became 70,500 yen the following year and did not move from that value until 2002. From there it kept falling, hit its bottom in the record up to the 2026 publication at 46,200 yen in 2012, then recovered, and is 58,100 yen in 2025. In the 2026 publication it is 57,800 yen. The order is that for more than ten years after the blast furnace stopped the value did not move, and the decline began only in the 2000s.

Traces also remain outside the valley. At the site of the inland Hashino blast furnaces, in which Oshima Takato was involved, the stonework remains on site, and in 2015 it became a component of a World Cultural Heritage site. There are also exhibition facilities in the city that pass on the history of ironmaking. It is a place where, after checking what has decreased in the photographs of the station area, you can trace inland where that iron began.