Oviksfjäll
The Oviksfjäll ( South Sami Luvlietjahkh ) is a mountain in Jämtland , Sweden . The extension is a maximum of 30 × 30 km.
The peaks around Hundshögen are the only ones that can be seen directly from Östersund to the west. The mountains rise to over 1,300 m. The highest among them is the already mentioned Hundshögen at 1,371 m above sea level, which is easily accessible from the Arådalen valley . Other notable peaks are Storfjället (Flinhtegietjie) (1,260 m), Österfjället (1,205 m), Falkfångarfjället (1,180 m), Västerfjället (1,158 m) and Drommen (1,140 m).
The Hästryggen (horse's back) mountain range, which consists of five individual peaks, extends as the western branch of the Hundshögens. Between the peaks there are so-called saddles, which were formed by the meltwater of the inland ice . On the southwest slope of the Hästryggen there are a large number of gullies that were formed by the melt water that followed the ice edges. The water flowed under and on the ice, but also directly out of the ice edges. This results in the irregular shapes of the channels. Where they are most irregular they are called "flowing serpentines". A special form of the gullies are the dry valleys that exist in the mountain birch forest at the Arådalen hikers' hostel. Well-developed, elongated chains of hills, so-called Oser , can be found east of Arådalen towards Gräftåvallen, not far from the hikers' hostel and in Lillfjället above the Östra Arådalen pasture .
The large and small shapes of the bedrock were rounded off by the work of the ice. The ice hollowed out crevices in the bedrock and formed round trough valleys like that mighty valley of the Dörrsjöarna lakes. The direction of movement of the ice sheet is based clear cracks and tracks, so-called. Eisrillen ( detersion ) visible. These ice grooves were left by stones and boulders frozen in the ice in the mountain range.
The Dörrsjöarna lakes are located in a deep trough valley between Hundshögen and Storfjäll. The trough valley was formed during repeated inland freezing. After the last ice age , some blocks of stone were blown away by frost on the mountain side . The originally extreme U-shape of the valley was leveled by the rocks collected at the valley floor. In the huge valley there are enormous amounts of deposits that remained after the glacier tongue melted . According to geologists, there is unlikely to be a counterpart to these extensive rinsing of gravel in any other area shaped by ice. First and foremost, there are two noteworthy formations in the Dörrsjöarna valley. On the one hand, there is the sander (from the Icelandic "sandur"), a broad alluvial cone that was formed by the melt streams directly in front of the ice. On the other hand, there are Oszüge, a network of parallel, embankment-like hills, which were created by piled up meltwater sands and gravel.