Østfold

Østfold [ˈœstˈfɔl]  ( listen) is a county in southeastern Norway, bordering Akershus and southwestern Sweden (Västra Götaland County and Värmland), while Buskerud and Vestfold are on the other side of Oslofjord. The county's administrative seat is Sarpsborg.

Many manufacturing facilities are situated here, such as the world's most advanced biorefinery, Borregaard in Sarpsborg. Moss (Moss Verft) and Fredrikstad have shipyards. There are granite mines in Østfold and stone from these were used by Gustav Vigeland.

The county slogan is "The heartland of Scandinavia". The local dialect is characterized by its geographical proximity to Sweden.

The name

The old name of the Oslofjord was Fold; Østfold means 'the region east of the Fold' (see also Vestfold). The name was first recorded in 1543; in the Middle Ages the name of the county was Borgarsysla 'the county/sýsla of the city Borg (now Sarpsborg)'. Later, when Norway was under Danish rule, the Danish king divided the area into many baronies. These were merged into one county (amt) in 1662 - and it was then named Smaalenenes Amt 'the amt consisting of small len'. The name was changed back to Østfold in 1919.