Island of Gotland and Vättern Lake, Sweden57.8N 18.8E
This wide-swath ASAR image shows Gotland (near right edge), Sweden’s largest island and the largest island in the Baltic Sea. However, with its total area of 3,140 square kilometers, the island of Gotland and the other areas of the province of Gotland make up less than one percent of Sweden’s total land area.
The province of Gotland includes the small islands of Fårö and Gotska Sandön to the north and some tiny islands, including the Karlsö Islands (Lilla and Stora) to the west. The island of Gotland has an area of 2,994 km², whereas the province has 3,183.7 km² (3,151 km² of land excluding the lakes and rivers). Gotland is located about 90 km east of the Swedish mainland and about 130 km from the Baltic States, Latvia being the nearest.
Visible on the Swedish mainland near the left edge is Vättern, the second largest lake (by surface area) in Sweden, and the sixth largest lake in Europe. It is a long, finger-shaped body of fresh water in south central Sweden to the southeast of Vänern pointing at the tip of Scandinavia. The lake’s total surface area is about 1,912 km2 (738 sq mi), with a drainage basin a little over double that, about 4,503 km2 (1,739 sq mi). The deepest known point, located to the south of the island of Visingsö, is 128 meters (420 ft). The average depth is 41 meters (135 ft). The lake has a perimeter of about 642 km (399 mi). The volume is 77.0 km3 (18.5 cu mi). These numbers tend to be fixed, as the level of the lake is regulated.