Lying approximately between latitudes 60° and 70° N, and longitudes 20° and 32° E, Finland is one of the world's northernmost countries. Of world capitals, only Reykjavík lies more to the north than Helsinki. The distance from the southernmost, Hanko, to the northernmost point in the country, Nuorgam, is 1,160 kilometres (720 mi).
Finland is a country of thousands of lakes and islands - about 188,000 lakes (larger than 500 m² or 0.12 acre) and 179,000 islands. Its largest lake, Saimaa, is the fourth largest in Europe. The area with most lakes is called Finnish Lakeland. The greatest concentration of islands is found in the southwest in the Archipelago Sea between continental Finland and the main island of Åland.
Much of the geography of Finland is explained by the Ice Age. The glaciers were thicker and lasted longer in Fennoscandia compared with the rest of Europe. Their eroding effects have left the Finnish landscape mostly flat with few hills and fewer mountains. Its highest point, the Halti at 1,324 metres (4,344 ft), is found in the extreme north of Lapland at the border between Finland and Norway. The highest mountain whose peak is entirely in Finland is Ridnitsohkka at 1,316 m (4,318 ft), directly adjacent to Halti.
The retreating glaciers have left the land with morainic deposits in formations of eskers. These are ridges of stratified gravel and sand, running northwest to southeast, where the ancient edge of the glacier once lay. Among the biggest of these are the three Salpausselkä ridges that run across southern Finland.
Having been compressed under the enormous weight of the glaciers, terrain in Finland is rising due to the post-glacial rebound. The effect is strongest around the Gulf of Bothnia, where land steadily rises about 1 cm (0.4 in) a year. As a result, the old sea bottom turns little by little into dry land: the surface area of the country is expanding by about 7 square kilometres (2.7 sq mi) annually. Relatively speaking, Finland is rising from the sea.
Forest covers 86% of the country's land area, the largest forested area in Europe. The forest consists of pine, spruce, birch and other species. Finland is the largest producer of wood in Europe and among the largest in the world.
The landscape is covered mostly (75% of land area) by coniferous taiga forests and fens, with little arable land. The most common type of rock is granite. It is a ubiquitous part of the scenery, visible wherever there is no soil cover. Moraine or till is the most common type of soil, covered by a thin layer of humus of biological origin. Podzol profile development is seen in most forest soils except where drainage is poor. Gleysols and peat bogs occupy poorly drained areas.
Phytogeographically, Finland is shared between the Arctic, central European and northern European provinces of the Circumboreal Region within the Boreal Kingdom. According to the WWF, the territory of Finland can be subdivided into three ecoregions: the Scandinavian and Russian taiga, Sarmatic mixed forests and Scandinavian Montane Birch forest and grasslands. Taiga covers most of Finland from northern regions of southern provinces to the north of Lapland. On the southwestern coast, south of the Helsinki-Rauma line, forests are characterized by mixed forests, that are more typical in the Baltic region. In the extreme north of Finland, near the tree line and Arctic Ocean, Montane Birch forests are common.
Similarly, Finland has a diverse and extensive range of fauna. There are at least sixty native mammalian species, 248 breeding bird species, over seventy fish species and eleven reptile and frog species present today, many migrating from neighboring countries thousands of years ago.[citation needed] Large and widely recognized wildlife mammals found in Finland are the brown bear (the national animal), gray wolf, wolverine and elk. Three of the more striking birds are the Whooper Swan, a large European swan and the national bird of Finland; the Capercaillie, a large, black-plumaged member of the grouse family; and the European Eagle-owl. The latter is considered an indicator of old-growth forest connectivity, and has been declining because of landscape fragmentation. The most common breeding birds are the Willow Warbler, Common Chaffinch and Redwing. Of some seventy species of freshwater fish, the northern pike, perch and others are plentiful. Atlantic salmon remains the favourite of fly rod enthusiasts.
The endangered Saimaa Ringed Seal, one of only three lake seal species in the world, exists only in the Saimaa lake system of southeastern Finland, down to only 300 seals today. It has become the emblem of the Finnish Association for Nature Conservation.
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