Stora Karlsö is a small Swedish island in the Baltic Sea, situated about 6 km (3.7 mi) west of Gotland. It has an area of about 2.5 km2 (0.97 sq mi) and is up to 52 m (171 ft) high. Most of the island consists of a limestone plateau, bordered by steep cliffs along the shore. It is mostly covered with alvar, with many juniper bushes and some small groves of deciduous trees.
There is evidence that Stora Karlsö has been inhabited since the Stone Age. During the Middle Ages there was a marble quarry, which gave the material for many of Gotland's churches. The island is a nature reserve, and after Yellowstone National Park is the oldest established protected nature area in the world. From May to August there are tour boats from the village Klintehamn.
1Part of Bro and Duss 2Part of Dalhem and Hallvide 3Part of Eskelhem and Bringsarve 4Part of Klinte and Follingbo norra and Klinte and Follingbo södra 5Part of Hablingbo and Medebys 6Part of Levide and Skinnarve 7Part of Lummelunda and Etebols 8Part of Sanda and Lekarve 9Part of Sylfaste and Lere 10Part of Ansarve and Tofta 11Part of Västergarn and Stora Mafrids