|Year first constructed||1904|
|Construction||cast iron tower|
|Tower shape||cylindrical tower with balcony and lantern|
|Markings / pattern||red tower and lantern|
|Height||19 metres (62 ft)|
|Focal height||23 metres (75 ft)|
|Light source||solar power|
|Range||12.5 nmi (23.2 km; 14.4 mi)|
|Characteristic||Oc WRG 6s|
Grinna Lighthouse (Norwegian: Grinna fyr) is a coastal lighthouse in the municipality of Vikna in Nord-Trøndelag, Norway. It was established in 1904 and automated in 1987. Grinna lighthouse stands on the islet of Grinna in the South Gjæslingan island group on the north side of the Foldafjord. The 19-metre (62 ft) high red tower emits a light every six seconds. The white occulting light flashes every six seconds, and it can be seen for about 12.5 nautical miles (23.2 km; 14.4 mi).
- Rowlett, Russ. "Lighthouses of Norway: Nord-Trøndelag". The Lighthouse Directory. University of North Carolina at Chapel Hill. Retrieved February 28, 2016.
- Store norske leksikon. "Grinna fyr" (in Norwegian). Retrieved 2011-10-04.
- "Grinna fyrstasjon" (in Norwegian). Norsk Fyrhistorisk Forening. Retrieved 2011-10-04.
- Kystverket (2008). Norske Fyrliste 2008 (PDF) (in Norwegian). ISBN 978-82-450-0628-5.
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