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Arresø () is the largest 
There are a number of rivers and streams running into Arresø of which the Pøleå is the most significant. The landscape is especially hilly along the lake's west side. Among these ridges are Maglehøj in the town of Frederiksværk and Arrenakke Hills, which has views of the lake. East of Frederiksværk, the Arrenæs peninsula juts out into the lake.
Historically, Arresø was a
Arresø
Danish Nature Agency * http://www.msfrederikke.dk/ {{DEFAULTSORT:Arreso Lakes of Zealand
lake
A lake is often a naturally occurring, relatively large and fixed body of water on or near the Earth's surface. It is localized in a basin or interconnected basins surrounded by dry land. Lakes lie completely on land and are separate from ...
, by area, in Denmark
Denmark is a Nordic countries, Nordic country in Northern Europe. It is the metropole and most populous constituent of the Kingdom of Denmark,, . also known as the Danish Realm, a constitutionally unitary state that includes the Autonomous a ...
. It covers 40,72 km2 (15.39 sq mi) and is situated on the island of Zealand 43 kilometers (27 miles) northwest of Copenhagen
Copenhagen ( ) is the capital and most populous city of Denmark, with a population of 1.4 million in the Urban area of Copenhagen, urban area. The city is situated on the islands of Zealand and Amager, separated from Malmö, Sweden, by the ...
as the crow flies.
Arresø is located in the northern parts of Zealand in the region of Hovedstaden just north of Ølsted and east of Frederiksværk. It is a part of the three municipalities Gribskov
Gribskov (Grib Forest) is Denmark's fourth largest forest, comprising c. 5,600 ha of woodland situated in northern Zealand, west and south of Lake Esrum. The forest is owned and administered by Directorate of State Forestry (Denmark), the State of ...
, Halsnæs, and Hillerød. The lake empties into Roskilde Fjord through the Arresø Canal in Frederiksværk. The artificial canal was begun around 1717 by royal command, and the work was carried out by Danish soldiers and Swedish POWs.
There are a number of rivers and streams running into Arresø of which the Pøleå is the most significant. The landscape is especially hilly along the lake's west side. Among these ridges are Maglehøj in the town of Frederiksværk and Arrenakke Hills, which has views of the lake. East of Frederiksværk, the Arrenæs peninsula juts out into the lake.
Historically, Arresø was a fjord
In physical geography, a fjord (also spelled fiord in New Zealand English; ) is a long, narrow sea inlet with steep sides or cliffs, created by a glacier. Fjords exist on the coasts of Antarctica, the Arctic, and surrounding landmasses of the n ...
, having extended northwards as Brødemose Sund, connected to Kattegat
The Kattegat (; ; ) is a sea area bounded by the peninsula of Jutland in the west, the Danish straits islands of Denmark and the Baltic Sea to the south and the Swedish provinces of Bohuslän, Västergötland, Halland and Scania in Swede ...
, but the land northwest of here rose after the last Ice Age, locking the waters in and creating the lake.
Arresø has a rich bird and floral life. Sea eagles have returned as nesting birds, and beavers have been reintroduced. The lake is included in the Kongernes Nordsjælland National Park.
The renovated wooden ship M/S Frederikke offers boat tours on the lake between May and September, embarking from Arresødal.
Sources
Arresø
Danish Nature Agency * http://www.msfrederikke.dk/ {{DEFAULTSORT:Arreso Lakes of Zealand