The High Coast (Swedish: Höga Kusten) is a part of the coast of Sweden on the Gulf of Bothnia, in the Ångermanland province of northeast Sweden, centered in the area of the municipalities of Kramfors, Härnösand and Örnsköldsvik. It is notable as an area for research on post-glacial rebound and eustacy, in which the land rises as the covering glaciers melt, a phenomenon first recognised and studied there. Since the last ice age, the land has risen 300 meters, which accounts for the region's unusually tall cliffs. The High Coast and the Finnish Kvarken constitute the Swedish/Finnish High Coast/Kvarken Archipelago UNESCO World Heritage Site because of its exceptional geology and unique example of isostatic rebound.
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High Coast in the context of Shingle beach
A shingle beach, also known as either a cobble beach or gravel beach, is a commonly narrow beach that is composed of coarse, loose, well-rounded, and waterworn gravel, called shingle. The gravel (shingle) typically consists of smooth, spheroidal to flattened, pebbles, cobbles, and sometimes small boulders, generally in the 2 to 20 centimetres (0.8 to 7.9 in) size range. Shingle beaches typically have a steep slope on both their landward and seaward sides. Shingle beaches form in wave-dominated locations where resistant bedrock cliffs provide gravel-sized rock debris. They are also found in high latitudes and temperate shores where the erosion of Quaternary glacial deposits provide gravel-size rock fragments. This term is most widely used in Great Britain.
While this type of beach is most commonly found in Europe, examples are also found in Bahrain, North America, and a number of other world regions, such as the west coast of New Zealand's South Island, where they are associated with the shingle fans of braided rivers. Though created at shorelines, post-glacial rebound can raise shingle beaches as high as 200 metres (660 ft) above sea level, as on the High Coast in Sweden.
High Coast in the context of Örnsköldsvik
Örnsköldsvik (Swedish: [œɳɧœldsˈviːk] ; Southern Sami: Orrestaare), often shortened to just Ö-vik, is a locality and the seat of Örnsköldsvik Municipality in Västernorrland County, Sweden, with 32,953 inhabitants in 2017.
Its natural harbour and archipelago is in the Gulf of Bothnia and the northern boundaries of the High Coast area. It is well known as an exporter of pulp and paper products and heavy machinery goods. It has a strong environmental record and is the "testbed" for ethanol-powered cars.
High Coast in the context of Valsörarna
63°25′N 21°05′E / 63.417°N 21.083°EValsörarna (in Swedish) or Valassaaret (in Finnish) is a small archipelago in Korsholm, Finland, located in the Kvarken region of the Gulf of Bothnia. The islands are the last you see when going by boat or ferry from Vaasa, Finland to Umeå, Sweden. The archipelago is detached from Korsholm's main Replot-Björkö archipelago. They are uninhabited and there is no road access. However, they are an important bird sanctuary, frequented by birdwatchers and ornithologists. They are included in the UNESCO World Heritage List along with the High Coast of Sweden and the archipelago of Kvarken, for exhibiting the effects of land rise due to post-glacial rebound.