Grytøya (Norwegian) or Rivttek (Northern Sami) is an island in Harstad Municipality in Troms county, Norway. The 108-square-kilometre (42 sq mi) island lies just north of the large island of Hinnøya and south of the island of Bjarkøya. It is surrounded by the Vågsfjorden in the east and the Andfjorden in the west. The highest peak on the island is the 1,012-metre (3,320 ft) tall mountain Nona. The population of Grytøya (2017) is 433. The southeastern part of the island is the most agriculturally productive. 
The northern part of the island was formerly part of the old municipality of Bjarkøy, which merged with Harstad Municipality on 1 January 2013.
December 17th, 2018
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