Question: What populated island of the Svalbard archipelago contains the Berzeliusdalen valley?
Context: Isfjord Radio is a coast radio station and weather station located at Kapp Linné on the island Spitsbergen in Svalbard, Norway.  The station was established in 1933, and has played an important role in the telecommunications between the Svalbard archipelago and the outside world.  The station was destroyed during World War II, and rebuilt in 1946.  The station was important for ships traffic and air traffic.  Satellite communications were established in 1979, but depreciated when a fiber optic cable between Svalbard and the mainland was finished in 2004.  Isfjord Radio was automated and depopulated in 1999.  Parts of the outdated installations have been preserved as a historical site. The Kodiak Archipelago is an archipelago, or group of islands, south of the main land mass of the state of Alaska (United States), about 405 km by air south of Anchorage in the Gulf of Alaska.  The largest island in the archipelago is Kodiak Island, the second largest island in the United States.  The archipelago is about 285 km long and 108 km across, from the Barren Islands on the north to Chirikof Island and the Semidi Islands group on the south.  The Archipelago contains 13,890 km2 of land.  The Kodiak Archipelago contains about 40 small glaciers, numerous streams and many species of land and marine animals.  Much of its land is forested. Woodfjord is a fjord on the north shore of Spitsbergen island in the Svalbard archipelago.  It is the fourth longest fjord in the Svalbard archipelago with the mouth facing north adjacent to Wijdefjord, and goes 64 km into the island, west of Andrée Land. Spitsbergen (formerly known as West Spitsbergen; Norwegian: "Vest Spitsbergen" or "Vestspitsbergen") is the largest and only permanently populated island of the Svalbard archipelago in northern Norway.  Constituting the westernmost bulk of the archipelago, it borders the Arctic Ocean, the Norwegian Sea, and the Greenland Sea.  Spitsbergen covers an area of 37673 km2 , making it the largest island in Norway and the 36th-largest in the world.  The administrative centre is Longyearbyen.  Other settlements, in addition to research outposts, are the Russian mining community of Barentsburg, the research community of Ny-Ålesund, and the mining outpost of Sveagruva.  Spitsbergen was covered in 21977 km2 of ice in 1999, which was approximately 58.5% of the island's total area. Danes Island (Norwegian: "Danskøya" ) is an island in Norway's Svalbard archipelago in the Arctic Ocean.  It lies just off the northwest coast of Spitsbergen, the largest island in the archipelago, near to Magdalenefjorden.  Just to the north lies Amsterdam Island.  Like many of Svalbard's islands, Danes Island is uninhabited.  The island has an area of 40.6 km2 . Krossfjorden (English: Cross Fjord) is a 30 km long fjord on the west coast of Spitsbergen, which is the largest and only permanently populated island of the Svalbard archipelago in Norway.  To the north, the fjord branches into Lillehöökfjorden, Möllerfjorden and Kollerfjorden.  To the south it is separated from Kongsfjorden by a line from Collinsodden on Mitrahalvøya east to Kapp Guissez. Phippsøya is the largest island in Sjuøyane, an archipelago north of Nordaustlandet, Svalbard in Arctic Norway.  It is located some 22 km north of Nordkapp on Svaldbard proper and 8.5 km south of Rossøya, the northernmost island of the Svalbard archipelago.  Phippsøya is separated from Parryøya to the south by the 1.3 km wide Straumporten sound, from Martensøya to the southeast by the 1.1 km wide Trollsundet and from Tavleøya to the northwest by the 1 km wide Marmorsundet. Berzeliusdalen is a valley in Nordenskiöld Land at Spitsbergen, Svalbard.  It has a length of about 16 kilometers, stretching from the mountain pass Skardalspasset down to the northern side of Van Mijenfjorden.  The valley is named after Swedish chemist Jöns Jacob Berzelius.  The river Berzeliuselva flows through the valley. Edgeøya, occasionally anglicised as Edge Island, is a Norwegian island located in southeast of the Svalbard archipelago; it is the third largest island in this archipelago.  An Arctic island, it forms part of the Søraust-Svalbard Nature Reserve, home to polar bears and reindeer.  Its eastern side is covered by an ice field.  The island is 5073 km2 in area, making it the third largest in the Svalbard archipelago.  The island is named after Thomas Edge (died 1624), an English merchant and whaler.  It is seldom visited today. The Svalbard Act" of 17 July 1925 no. 11, normally referred to as the Svalbard Act" (Norwegian: "Lov om Svalbard" or colloquially "Svalbardloven" ), is a law of Norway which governs the major aspects of the Svalbard archipelago.  The law was passed by the Parliament of Norway on 17 July 1925, establishes Norwegian sovereignty of the island, and states that Norwegian criminal law, civil law and procedure law are enforced on the island.  Otherwise, other provisions and laws only apply when specified.  The act further established the policy for administration, including creating the Governor of Svalbard, and since 2002, Longyearbyen Community Council.  The act also establishes rules for real estate and environmental protection.
Answer: Spitsbergen