Karlholmsbruk is a locality

Urban areas in Sweden

Urban area is a common English translation of the Swedish term tätort. The official term in English, used by Statistics Sweden, is, however, locality. There are 1,940 localities in Sweden . They could be compared with census-designated places in the United States.A tätort in Sweden has a minimum of...

 situated in Tierp Municipality

Tierp Municipality

Tierp Municipality is a municipality in Uppsala County in east central Sweden. Its seat is located in the town of Tierp.-External links:* - Official site...

, Uppsala County

Uppsala County

Uppsala County is a county or län on the eastern coast of Sweden. It borders the counties of Stockholm, Södermanland, Västmanland, Gävleborg, and the Baltic Sea.- Province :For History, Geography and Culture see: Uppland...

, Sweden

Sweden

Sweden , officially the Kingdom of Sweden , is a Nordic country on the Scandinavian Peninsula in Northern Europe. Sweden borders with Norway and Finland and is connected to Denmark by a bridge-tunnel across the Öresund....

 with 1,187 inhabitants in 2005.

In 1725 Charles de Geer

Charles De Geer

Baron Charles de Geer was a Swedish industrialist and entomologist.- Life :...

 of Lövstabruk purchased the mansions of Finnerånger, from Johan Dahl Finnerånger, and Holmsånger, from Hugo Johan Hamilton Holmsånger, in order to start an ironworks, Karlholmsbruk, at the mouth of Tämnarån, which he successfully did after a lengthy legal process. Originally a Wallonic hearth was erected. In 1880 it was replaced by a Lancashire hearth

Lancashire hearth

The Lancashire hearth was used to fine pig iron, removing carbon to produce wrought iron.-Origins:Until the early 19th century, the usual method of producing wrought iron involved a charcoal-fired finery in a finery forge. By the beginning of the century, this was an obsolescent process, which was...

. Iron production was discontinued in September 1932.