At Þvottá in Álftafjörður are important remains associated with the Christianisation of Iceland. According to tradition, the missionary Þangbrandur stayed with Síðu-Hallur around the year 1000. A protected ruin stands near Þangbrandsbrunnur, and Þvottá later became a church site.
Archaeological site
Protected
Original use
Ruins and religious heritage associated with Þangbrandsbrunnur.
Historical significance
The site is associated with traditions concerning Þangbrandur, Síðu-Hallur and the Christianisation of Iceland.
Last verified 22 September 2026