Rjukan / Notodden

Rjukan / Notodden
Photo by Els Slots.

The Rjukan / Notodden Industrial Heritage Site covers a former production complex that used revolutionary hydroelectric power plants in the Måna River and its waterfalls.

The complex was established by the private Norsk-Hydro company in the early 20th century to produce hydroelectricity and manufacture artificial fertilizer. It used the natural topography to generate the large amounts of power needed. The site includes both the technological components such as dams, tunnels and power plants, and the company towns of Rjukan and Notodden.

Community Perspective: located in a beautiful Norwegian landscape, but the site itself can be a bit hard to grasp and covers a stretch of some 80km. Juha recommends walking along the river Måna all the way from Rjukan to Vemork power station and Rjukanfossen waterfall.

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Germany - 21-Aug-20 -

Rjukan / Notodden by Nan

While humans have put manure of fields for millenia, it was never fully understood why that actually worked. It was in the 19th century that a German chemist, Justus von Liebig, showed the benefits of plant nutrients; he is referred to as the "father of the fertilizer industry". The initial fertilizer used in the 19th century was guano which had to be imported from South America and which had limited availability. So, plenty of researchers were looking for a way to produce fertilizers instead of mining them.

At the beginning of the 20th century a Norwegian chemist, Kristian Birkeland, developed a process, the Birkeland-Eyde Process, named after him and his business partner, Sam Eyde. The process required loads of energy and they set about to use hydropower to commercialize it. The first factory was at Notodden close to a hydropower plant. A company town grew around it. Eventually, the energy consumption exceeded what was available at Notodden and production was shifted up into the mountains to Rjukan where more hydropower was available. In the process, the whole landscape between Notodden and Rjukan was transformed. A railway including a rail ferry had to be built, several factories, a company town, hydropower plants... The scope of the business venture is mind boggling. In the end, though, the Birkeland-Eyde process fell out of use. The Bosch-Haberer process required less energy and is what is in use nowadays.

I had the pleasure to have Randi and Svein take me to the site. We started in Notodden, where we also visited the villa on the hill. Then we went to the local hydropower plant. On our way to Rjukan, we stopped at the first ferry terminal and then went all the way to the upper lake at Rjukan where we had a great Norwegian BBQ overlooking the beautiful landscape. Thanks to Randi and Svein!

The highlight of the visit is the Vemork plant where we went after lunch. Stunningly located on the waterfall, it's a huge plant and the factory hall is impressive. We then stopped in Rjukan and took a look around in the company town. Last stop, was a visit to the other ferry terminal. It was a long day, but there simply is so much to see.

Getting There

Getting to Notodden from Oslo is fairly straightforward. The bus station you are aiming for is Notodden skysstasjon which is right in the center of the WHS. Trip takes around 2h. Be sure to check the schedule, though, as departure times and connections may fluctuate wildly depending the weekday. Worst day is Saturday. In Notodden, all sites are reachable by foot and I would recommend starting your visit here as it's the oldest part of the inscription.

From Notodden, you can take a bus to Rjukan. The route follows the core zone. Without your own transport, though, you will probably not be able to visit the stops along the way (ferry terminal, railway station).

To get up to to Vemork in Rjukan, you can catch another bus. So, it's feasible as a day trip using public transport. I was lucky to have Svein and Randi take me by car which is the best option :)

While You Are There

A visit to Heddal Stave Church is a must. It's a bigger stave church than Urnes, very different in feel. It would be a great addition to the list. It's along the bus route, so you should be able to add a stop here.


Belgium - 11-Sep-19 -

Rjukan / Notodden by Kbecq

The site focuses on the production of fertilizers by using hydro energy. At the core of this site are the Norsk Hydro production- and power plants, but also the Rjukan and Notodden company towns and the transport system between both towns (rail and ferry).

This probably isn’t a site that will appeal to many but because of mr. Kbecq’s professional interest in this industry we couldn’t visit Oslo without also visiting Rjukan and Notodden. We hired a car in Oslo and although it was winter (March) we made it to Rjukan without problems.

In Rjukan we first visited the Vemork power plant, a couple of kilometers outside Rjukan, which now houses the Industrial Workers museum. Despite the name, the museum mainly focuses on the heavy water production (for nuclear weapons) sabotage by the Norwegian resistance during WW II. The movie ‘The Heroes of Telemark’ (1965, with Kirk Douglas) is about these events and also shows the rail / ferry transports.  

Afterwards, we went to the centre of Rjukan and walked along the river where all the production facilities are located. Since most facilities are converted to office buildings, there is not that much to see but the location in the valley is nice. The building that stands out most is the Såheim power plant.

Our day ended with a ride on the Krossobanen (cable car) to the Hardangervidda plateau. From here, you have a magnificent view on Rjukan / the valley and on the Gaustatoppen mountain (cf. picture).

The next day we headed for Notodden, but a couple of stops in between the two cities are worth mentioning. First there is Mæl train station, the end of the ‘Rjukanbanen’ railway line from Vemork to Mæl. At this point, the trains are driven into ferries to cross Tinnsjå lake. The two still existing ferries (S/F Ammonia and M/F Storegut) were also docked here.

Driving along Tinnsjå lake, there is a parking with a monument commemorating the sinking of ferry SF Hydro as part of the ‘heavy water war’ (cf. above).

The ferries arrived in Tinnoset where the trains were offloaded and continued on the ‘Tinnosbanen’ railway line to Notodden.

In Notodden, the industrial area is a bit more clustered than in Rjukan, but like in Rjukan most buildings are converted into office space. Right next to the industrial area is the geometric workers neighborhood and the administration buildings. A little bit farther away are the Tinfos I and II power plants.

In case you only have time to visit Rjukan or Notodden, we would opt for Rjukan because of the nicer setting in the valley, the more ‘industrial town’ feeling and the Vemork power plant.   

Ps: note that the nomination file includes good maps, descriptions, … and is therefore very helpful in locating and understanding the different sites.



Netherlands - 29-Apr-19 -

I visited this site in August 2015, together with a friend who lived in Norway then, and I haven't much to add to Els's review about the WHS itself.

But if you haven't seen it, watch the tv-series The Heavy Water War (Kampen om Tungtvannet) (shortly) before going there. Of course, it's dramatised and not 100% accurate, but it's a nicer way to understand what happened here in WW2 than the museum can show you. It'll help you to breathe in the region's history when you're walking in the valley or across the hills. Perhaps that's what made me give it the extra half star.

(The picture is showing the Sun Mirrors that Els already mentioned; funny enough of it's own to watch from a nice terrace below.)



Juha Sjoeblom

Finland - 18-Jul-17 -

Rjukan / Notodden by Juha Sjoeblom

Site visited April 2017. Rjukan – Notodden industrial heritage site is located in the beautiful Norwegian landscape. Sometimes I found the landscapes more interesting than the industrial values. This site needs a bit of background research to really understand it.

There are plenty of industrial sites around Nordic countries. Some of them have been inscribed already: Falun, Engelsberg, Røros and Verla. The first question I had, what makes just this site worth of World Heritage status? What qualities it has that the other uninscribed Nordic industrial sites don’t have?

I had a business trip to Oslo so I decided to make a short side trip to Rjukan and Notodden after my duties. I travelled to Rjukan by bus. The trip took 3,5 hours. I stayed overnight in a small hostel just beside the river and Såheim power plant.

It was a sunny spring morning when I started to explore the city of Rjukan. The first thing I noticed already the previous night was nearby Såheim power plant with its robust grey stone exterior and towers. It is impressive especially during night when it is beautifully lit. It was a nice weather so I decided to walk along the river Måna all the way from Rjukan to Vemork power station and Rjukanfossen waterfall. The trip by foot takes about an hour. Along the route there are lots of original factory buildings from the early 20th century. Lately some of them have been converted to offices and workshop spaces. I think Vemork power station is one of the most important single sites in this WHS so I highly recommend to do this long detour. Vemork power station, which was the world's biggest hydroelectric power plant when it was completed, is really imposing building at its location high above the river valley. The Rjukanfossen waterfall must have been very impressive when there was water flowing but nowadays it is a bit sad sight. It is easy to spend a whole day in Rjukan especially if you walk to Vemork and visit Krosso aerial cableway for nice views over the valley and the town.

I made only a short stop at Notodden so I don't have that comprehensive impression about it. I found the industrial sites in Notodden less interesting than the ones in Rjukan although the town itself seemed more vibrant than sleepy Rjukan. Old factory area is just beside the bus and railway stations so you cannot miss it. The factory buildings didn’t look inviting and most of them are currently used for some small industry, storage and office purposes. I walked via Tinfos power plants to the workers housing area and then back to the factory area. After a short exploring I headed by train back to Oslo airport.

Back to my original question, what makes this complex and geographically large site worth of WHS status. I guess it is mainly the pioneering industrial development related to extensive use of hydroelectric power and the ground-breaking methods to produce artificial fertilizer. The problem is that if you are not an expert on these particular technical methods and substances, the outstanding universal industrial values could seem a bit obscure. Fortunately there are some 'easier' things to understand like the urban communities totally built by this industry for its needs and the innovative transport system between Rjukan and Notodden. In any case, this is a worthwhile inscription if you think it from the 'filling the gaps' perspective that Els mentioned in her review. I think Rjukan – Notodden is comparable to Falun for its qualities and general significance although it is not that well known.

As a nature lover I have a bit mixed feelings for this kind of site. Basically it is all about how man has exploited and altered the nature for its needs. I really like Norway’s untouched nature so I had hard time seeing dry Rjukanfossen waterfall, dams that block the rivers, pipelines that direct water to the power stations and so on. But these things have been done a hundred years ago so there is nothing you can do about it.

It is always a pleasure to visit Norway as I really like its nature, dramatic landscapes and lovely wooden houses. Although especially Rjukan is an interesting little town, the outstanding universal value for just the industrial places is a bit hard to notice without acquiring some background information. But of course there are certain factors that make this site special in the industrial category. I think they should brand this site better and make it clear for visitors why these places are important enough for earning WHS status. All in all, I had nice time visiting the site but it being a WHS is not that self-evident for me.

Els Slots

The Netherlands - 04-Jun-16 -

Rjukan / Notodden by Els Slots

Rjukan/Notodden Industrial Heritage Site was added to the WH List last year. It’s a niche site that very few will have visited before its designation - our visitor count currently still stands at a modest 17. It’s also one of the clearest examples of under-represented cultural properties brought forward by the Filling the Gaps study of ICOMOS (2005): a ‘developing technology’ related to ‘energy conversion and utilization’. At Rjukan/Notodden, hydro energy was created using the natural power of waterfalls and rivers.

Of course, I had done my usual preparations: reading the ICOMOS review and the nomination dossier, plus some additional Googling on certain subjects. But I had difficulty grasping what this WHS exactly involves. What will follow is a reconstruction that hopefully will provide a starting point for future WH travellers.

First of all, this is a linear WHS. It covers the flow of the water downhill via two rivers and a lake, plus the railway tracks and the land in between that run parallel to the water. The core zone is 93km in length and stretches between the towns of Rjukan and Notodden. Rjukan lies a little over 3 hours west of Oslo Airport. The E37 road runs parallel to the river and railway. It is an easy and quiet route to drive (there are also buses).

While driving I was constantly on the lookout for 'something industrial' - this is an industrial WHS after all. What you get though is the quintessential Norwegian landscape with dark blue lakes and forested mountains. The weather was glorious too on the first Saturday in June, so it was all very pleasant. But the relevance to a technology site eluded me.

My first ‘find’ I did near Tinnsjö Lake, almost halfway. Beneath a shelter, at a parking lot, I stumbled upon a kind of steam rail car on wheels, a Lokomobil from 1903. Across the road stands an information panel about the Lake itself: it was the spot of an act of resistance in World War II when a railway ferry laden with "heavy water" (required for hydrogen bombs) was brought down by the Norwegian resistance.

The closer I got to Rjukan, the more dramatic the landscape became. The 1,883m high Gaustatoppen, the highest mountain in the region and still fully-covered in snow, beaconed. The town of Rjukan was built from scratch by hydropower producer Hydro in the early 1900s for its workers. It lies literally in the shadow of this high mountain, from September to March no sunlight reaches the houses. Only in 2013, the residents decided to do something about it: mirrors have been placed on top of the mountain so the sunlight is reflected back into the village.

Hydro had chosen this spot because of the Rjukanfossen: a high and steep waterfall, which produced a lot of power. There is a viewpoint just north of Rjukan from where you can see this. Only there’s no water flowing anymore! The course of the river has been diverted because of a modern hydropower station. The original hydroelectric plant now houses the Vemork Workers Museum. It sits high on the hillside, a 20-minute climb from the car park across a narrow river bridge where people were bungee jumping (again: no water). The museum itself focuses strongly on the WWII connotations of the site, and less on the hydroelectric story. There is one main hall with shiny black steam engines and pumps: here it resembles the closest comparable WHS, the Ir. D.F. Woudagemaal.

Just outside Rjukan, I made another quick stop: this time at one of the two railway ferries. These old ships have been lovingly restored to their former state. It's funny to see how the railway track runs right down to the lake’s edge and then connects with the tracks on the ferry. Meanwhile, it was getting late already, so I just drove on the Notodden: a messy little town, with even less industrial history visible at first sight than elsewhere on the route.

So what’s the verdict about this WHS? You’ll have to keep in mind that it is a relict industrial landscape – the same area is also used for modern industries, town life and nature tourism. On paper (such as in the nomination dossier) it is easy to focus on the early 20th-century industrial elements, but in reality, they hardly stand out. I also believe that the Norwegian cultural or tourism authorities could do more about the interpretation of this WHS to visitors. Except for the Vemork Museum, the remaining elements seem to be kept going by volunteers. There are hardly any signs pointing to worthwhile elements of the industrial landscape. I never found the Tinfos power plants, for example, two of the most prominent structures highlighted in the nomination.

Read more from Els Slots here.


Japan / USA / Europe - 06-Jul-15 -

Rjukan / Notodden by Tsunami

I visited this site in August 2012. I took a train from Nordagutsu through Hjuksebö to Notodden to visit the largest stave church in the world on my way back to Oslo on the same day.

The railway between Hjuksebö and Notodden is supposed to be part of the World Heritage Site and is apparently still in use. I happened to take this photo of the train on the railway because I thought it was cute.

Site Info

Full Name
Rjukan / Notodden Industrial Heritage Site
Unesco ID
2 4
Structure - Factories and industry

Site History

2015 Inscribed


The site has 1 locations

Rjukan / Notodden

The site lies in the southeast of Norway, its furthest point is some 200 km away from Oslo. The towns of Rjukan and Notodden are fairly accessible by car and bihourly public bus.


The site has

Art and Architecture
Human Activity
World Heritage Process