Oulu is a city in Finland and the regional capital of North Ostrobothnia. It is located on the northwestern coast of the country at the mouth of the River Oulu. The population of Oulu is approximately 215,000, while the sub-region has a population of approximately 263,000. It is the 5th most populous municipality in Finland, and the fourth most populous urban area in the country. Oulu is also the most populous city in Northern Finland.
Hailuoto is a Finnish island in the northern Baltic Sea and a municipality in Northern Ostrobothnia region. The population of Hailuoto is 948, making it the smallest municipality in Northern Ostrobothnia and the former Oulu Province in terms of population. The municipality covers an area of 205.65 km2 (79.40 sq mi) of which 1.70 km2 (0.66 sq mi) is inland water. The population density is 4.61/km2 (11.9/sq mi). Of all the Finnish sea islands, Hailuoto is the third largest after Fasta Åland and Kimitoön.
Haukipudas is a town and former municipality of Finland. It was located in the province of Oulu and is part of the Northern Ostrobothnia region. Its shore runs along the Gulf of Bothnia, with the river Kiiminkijoki running through the province. Along with Kiiminki, Oulunsalo and Yli-Ii municipalities it was merged with the city of Oulu on 1 January 2013.
The Bothnian Bay or Bay of Bothnia is the northernmost part of the Gulf of Bothnia, which is in turn the northern part of the Baltic Sea. The land holding the bay is still rising after the weight of ice-age glaciers has been removed, and within 2,000 years the bay will be a large freshwater lake since its link to the south Kvarken is mostly less than 20 metres (66 ft) deep. The bay today is fed by several large rivers, and is relatively unaffected by tides, so has low salinity. It freezes over each year for up to six months. Compared to other parts of the Baltic, it has little plant or animal life.
Oulu Castle was a late defense castle in Oulu, Finland. It was built on an island in the delta of Oulu River in 1590. The castle was mostly made of wood and earth walls. There probably was an earlier medieval castle on the same site latest by 1375. The Russian Sophia Chronicle has recorded that men from Novgorod tried to conquer a new castle in the Oulu River delta in 1377 but were unsuccessful.
Kõpu Lighthouse is one of the best-known symbols and tourist sites on the Estonian island of Hiiumaa. It is located in the in the village of Mägipe. It is one of the oldest lighthouses in the world, having been in continuous use since its completion in 1531. The lighthouse is quite unique with its shape and exceptional among lighthouses because it has gone through all the stages from a medieval landmark up to a modern electrified lighthouse.
George Island Light is a lighthouse located on George Island that lies in the middle of the North Basin of Lake Winnipeg in the Canadian province of Manitoba. It is located approximately 400 km (250 mi) north from Winnipeg, and approximately halfway between the shore communities of Grand Rapids and Poplar River.
Rivinletto Light is a sector light tower located on Kaasamatala, a small island at the mouth of river Kiiminkijoki in Haukipudas, Oulu, Finland. The tower is concrete, with its top half painted black and bottom half painted white. The steel lantern room is painted white. The tower is located on the south side of the main channel of Kiiminkijoki river.
The Keskiniemi beacon tower, often referred to as the Karvo beacon tower, is a historic daymark located on a promontory of Keskiniemi in the northwestern part of Hailuoto island in the Gulf of Bothnia in Finland. The tower was built in 1858 to alert the vessels about sandbars reaching northwest from the site. It is the oldest surviving navigational aid on Hailuoto island. The tower has structural similarities with the Härkmeri beacon tower built in 1857.
Hiidenniemi beacon tower was a historic daymark tower on the northern coast of Hailuoto island in Gulf of Bothnia in Finland. The structure was located at the northernmost point of the island, a minor promontory named Hiidenniemi.
Koskela Light is a sector light tower located on the southern shore of Letonniemi promontory in Taskila district of the City of Oulu in Finland. The tower is located within the boundaries of the Letonniemi natural preserve.
Tasku beacon tower is a daymark tower located on the island of Tasku in the Raahe archipelago in the Gulf of Bothnia in Finland. The structure was built in 1853 from the plans drawn by Albin Stjerncreutz. In 1983 the Finnish Maritime Administration handed it over to the City of Raahe. Currently the city is responsible of the upkeep of this historical aid to navigation. The Tasku beacon tower is one of three historical beacon towers in Raahe archipelago, however only two beacon towers remain: the second one is the Iso-Kraaseli beacon tower.
Keskiniemi Light is a sector light tower located in the northwestern promontory of Hailuoto island in the Gulf of Bothnia in Finland. It was built in 1908 and is located next to the Keskiniemi beacon tower built in 1858.
Rautakallio Light is a fishing light located on a small island of Rautakallio in the narrows between the mainland and the island of Hailuoto in Finland. The island and the light both lie within the municipal boundaries of Siikajoki near the municipal border of Hailuoto. The coastal route between Raahe and Oulu runs south of the island.
The Wood Islands Lighthouse is a historic lighthouse built by Donald MacMillan situated on the southeastern shore of Prince Edward Island, located in the community of Wood Islands. The lighthouse is a well-preserved three storey tower with an adjoining 1+1⁄2-storey keeper's residence. The white shingled tower is topped by a red iron lantern, which is enclosed by a white railing on the observation deck. The red roof of the dwelling provides a striking contrast to the white shingled exterior of the dwelling.
Lågskär Lighthouse is an automated lighthouse located on the north side of Lågskär, one of Finland's Åland in the Sea of Åland of the Baltic. It is the only striking feature on Lågskär on the generally uninhabited island.
Kellon Kraaseli is an island in the Finnish sector of the Bay of Bothnia.
Oulu TV Mast is a mast in the Huttukylä district in Oulu, Finland. The mast is also known as Kiiminki TV Mast as it is located in the area of the former Kiiminki municipality.
Raine Island Beacon is a heritage-listed beacon at the eastern end of Raine Island, Shire of Cook, Queensland, Australia. It was built in 1844 by convicts. It was added to the Queensland Heritage Register on 21 October 1992.
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