Radunia

The Radunia ( Kashubian Reduniô, dt Radaune ) is a river in Pomerellen in the north of Poland.

It rises in the Jezioro Radunskie Górne ( Radaune Lake ) or Jezioro Stężyckie ( Stendsitzer lake ) at Stężyca ( Stendsitz ) in the center of Kashubian Switzerland. Researchers are of the opinion that the name of Old Prussian " Raudas ": reddish derive is (cf. Latvian " Rauda ": roach ). The Old Prussian name Raudune dates from the year 1316, while the river name appears as Raduna in Pomeranian documents already in 1212.

The Radunia opens in Krępiec ( Krampitz ) in the Motława ( Mottlau ), which in turn opens at Gdansk ( Danzig) in the Vistula. The length of the river is 103.2 km, the area of the catchment area 837 km ². The height difference from the source to its mouth is 162 m. Among the cities along the river include Żukowo ( Zuckau ) and Pruszcz Gdański ( Praust ), a city of about 22,000 inhabitants.

Better known is the Radaunekanal ( pl. Kanał Raduni ) which was built in the 14th century in Prussia under the rule of the Teutonic Knights to supply Gdansk with water.

It branches near the city Praust the river from, leads directly to Gdansk and has driven there until 1945, the Great Mill and Little Mill in Gdańsk's Old Town. After he wraps around the right city and the old town in an arc, it flows north of the center in the Mottlau.

In the years 1910-1937 eight hydroelectric power stations were built on the river; their total capacity is 14 MW.

On one part of the river course with a length of about 6 km to the nature reserve Jar Rzeki Raduni was founded. Its area is 84.24 ha

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