Oregrounds iron was a grade of iron that was regarded as the best grade available in 18th century England. The term was derived from the small Swedish city of Öregrund, the port from which the bar iron was shipped. It was produced using the Walloon process.
Statue of Louis de Geer (1587-1652) in Norrköping, Sweden. De Geer introduced the Walloon method to Sweden.
Öregrund is a locality situated in Östhammar Municipality, Uppsala County, Sweden. As of 2010, it had 1,555 inhabitants. It is located by the Baltic Sea, on the coast of Uppland. Despite its small population, Öregrund is still commonly referred to as a city for historical reasons.
Öregrund seen from a boat moving between Gräsö and Öregrund
View of the Öregrund marina, looking north out to the Bothnian Sea in 2019. The marina is near town center, with restaurants on either side and the Vastra Banken lightship, a local landmark, to the right.