Hoverberget (548m) 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, 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 metres (837 ft) above the Storsjön and the surrounding area, and culminates at 548 metres (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. The mountain also has a rich bird life, with many birds of prey such as the Common Kestrel, the Eurasian Sparrowhawk and the Long-eared Owl. Besides more common mammals, Hoverberget is also home to Eurasian lynx.
The tourist attraction called Hoverbergsgrottan (Hover Mountain Cave) has a depth of 170 metres (560 ft), and is the largest rock cave in Scandinavia. It was discovered 1897 by Jöns Väst, a Swedish-American. 81 metres (266 ft) of the cave is accessible to visitors. Less known is the Rämnan (The Fissure), a large ravine in the mountain with a length of about 400 metres (1,300 ft) and a depth of about 25 metres (82 ft), that is visible from the west and even from the county highway länsväg 321. According to a folk tale, a giant called Hoverbergsgubben (The Hoverberg Lad) resided in the cave, but moved out when people began to tidy the cave.