Noorderhaaks (Dutch pronunciation: [ˌnoːrdərˈɦaːks]), also called Razende Bol (Raging sandbank in Dutch; in modern Dutch Bol means sphere, but in this context the old Dutch meaning of sandbank is meant), is an uninhabited Dutch island in the North Sea, a few kilometres west of the Marsdiep which separates the island of Texel from the mainland of the Netherlands. The island covers an area of around five km², although the exact area varies due to tide and the dynamic nature of the area.
|Archipelago||(West) Frisian Islands|
|Adjacent bodies of water||North Sea|
The island is slowly moving eastward towards the Marsdiep and the Molengat, at a pace of around 100 metres a year. Noorderhaaks is probably the sixth sand bar to develop in the mouth of the Marsdiep, since it formed in the late twelfth century via a flood that occurred in 1170. The previous five have also moved towards Texel and got accreted to the island, with intervals of approximately 150 years each.
- (in Dutch) "Woordenboek der Nederlandsche Taal", 1893.
- (in Dutch) "Zandplaat De Razende Bol voortaan eiland", Nederlands Dagblad, 2003.
- (in Dutch) Vos, A.D. (2012); Onderwaterarcheologie op de Rede van Texel Archived 2015-02-08 at the Wayback Machine, Nederlandse Archeologische Rapporten 041 (Rijksdienst voor het Cultureel Erfgoed, Amersfoort), p. 37-47.
- Media related to Noorderhaaks at Wikimedia Commons