Trehörnings masugn
Preserved mull-timber blast furnace from the 1630s in Mariedamm outside Askersund, the county's only surviving furnace of its type, with guided tours and a café hut.
Have only individual sections read aloud
About the museum
Trehörnings masugn lies in Mariedamm east of Askersund and is a reminder of the old iron industry in the Lerbäck mining district (bergslag). The blast furnace was established in the 1630s and bought in 1648 by Louis de Geer. It produced pig iron, which was transported on to Godegårds bruk (ironworks). The furnace was rebuilt several times, and in 1781 it became the largest and most modern in the mining district. Operation ceased in 1889.
The furnace is a mulltimmerhytta, in which the upper part is clad with timber logs that hold together a layer of earth, while the lower part is built of stone. In the middle is the furnace shaft where the ore was smelted into iron. It is the county's only surviving furnace of this type and one of the few in the whole of Sweden.
After closure the building fell into disrepair, but interest was awakened by a model exhibited in Gothenburg in 1923. Lerbäcks hembygdsförening (Lerbäck Local Heritage Society) restored the furnace in 1932, and major restorations were also carried out in the 1960s and 1990s. It was reinaugurated in 1995 and has been a listed building since 1993.
Highlights
- The county's only surviving mull-timber furnace
- Blast furnace from the 1630s in operation until 1889
- Guided tours by prior booking
- Summer-open coffee hut
- The Mariedamsleden trail starts at the blast furnace
- Founded
- 1639
Admission & discounts
The museum hasn’t published any information on this.
Accessibility
- Wheelchair accessible: not available
- Elevator: no information
- Accessible restroom
- Accessible parking: no information
- Service dogs welcome: no information
- Tactile models & exhibits: no information
- Sign language tours: no information
- Easy-to-read materials: no information
- Audio description: no information
The area is not adapted for people with reduced mobility. An accessible visitor toilet is available.
Kids & families
The museum hasn’t published any information on this.
Getting there & parking
The road runs between Rönneshytta and Mariedamm. In Mariedamm turn west towards the road to Zinkgruvan; the furnace lies on the north side of that road. The Mariedamsleden, a hiking trail of 4 or 9 kilometres, starts at the furnace.
Get directionsAmenities & dining
- Café
Summer-open coffee hut in the blast furnace area.
Events & venue rental
The museum hasn’t published any information on this.
Plan your visit
| Guided tours | yes · approx. 45 min |
|---|---|
| Good to know | Guided tours take about 30–45 minutes and must be booked in advance. Next to the furnace is a former English park, where guided tours can also be booked. |
