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A cave or cavern is a natural void in the ground, [1] [2] specifically a space large enough for a human to enter. Caves often form by the weathering of rock and often extend deep underground. The word cave can also refer to much smaller openings such as sea caves, rock shelters, and grottos, though strictly speaking a cave is exogene, meaning it is deeper than its opening is wide, [3] and a rock shelter is endogene. [4]
Name | Location | Picture | Notes |
---|---|---|---|
Coral Cave | Jämtland | ![]() | The Coral Cave is a marble cave at the northernmost tip of Jämtland, near Ankarvattnet, Sweden. It was discovered in 1985. So far, six kilometres of it have been explored, making it Sweden's longest cave. [5] [6] Members of the public are not allowed to visit the Coral Cave without a guide. |
Hoverberget | Jämtland County | ![]() | Hoverberget is a mountain on a peninsula in the southern part of the Storsjön lake. The mountain, a significant landmark and a Natura 2000 designated nature reserve, [7] lies within Berg Municipality in the southern parts of Jämtland in northern Sweden. The village of Berg lies on the south slope of the Hoverberget, which is 255 m (837 ft) above the Storsjön and the surrounding area, and culminates at 548 m (1,798 ft) above sea level. Hoverberget is made of porphyry, and originates from the same period as the Scandinavian Mountains. For millions of years it has been moving eastwards, and it now lies isolated and apart from other mountains. The mountain is rich in flora, with several orchid species, and many of the plants grow at their northernmost growth boundary. There are several rare species of moss and lichen. [8] |
Lummelunda Cave | Lummelunda | ![]() | The Lummelunda Cave is located in a nature reserve at Lummelunda north of Visby on Gotland, Sweden. The explored part of this karst cave is almost 4.5 km (2.8 mi), making it one of the longest caves in Sweden. It is created by the drainage water from the Martebo mire. The water forms a stream with its outlet in the Baltic Sea. In the 15th to 19th centuries, mills and an ironwork were set up by the stream. |