The Oster is a river of Saarland, Germany. It flows into the Blies near Neunkirchen.

This article does not cite any sources. (September 2020)

You can help expand this article with text translated from the corresponding article in German. (October 2011) Click [show] for important translation instructions. View a machine-translated version of the German article. Machine translation, like DeepL or Google Translate, is a useful starting point for translations, but translators must revise errors as necessary and confirm that the translation is accurate, rather than simply copy-pasting machine-translated text into the English Wikipedia. Do not translate text that appears unreliable or low-quality. If possible, verify the text with references provided in the foreign-language article. You must provide copyright attribution in the edit summary accompanying your translation by providing an interlanguage link to the source of your translation. A model attribution edit summary is Content in this edit is translated from the existing German Wikipedia article at [[:de:Oster (Blies)]]; see its history for attribution. You may also add the template {{Translated|de|Oster (Blies)}} to the talk page. For more guidance, see Wikipedia:Translation.

Quick Facts Location, Country ...

Oster
Location
Country	Germany
State	Saarland
Physical characteristics
Source
• elevation	453 m (1,486 ft)
Mouth
• location	Blies
• coordinates	49°22′19″N 07°11′17″E
• elevation	243 m (797 ft)
Length	30.7 km (19.1 mi)
Basin features
Progression	Blies→ Saar→ Moselle→ Rhine→ North Sea
Tributaries
• left	Dünkelbach, Selchenbach, Bubach
• right	Wilmesbach, Betzelbach, Lautenbach

Close

The Oster originates in the Saar-Hunsrück Nature Park, a little west-northwest of Oberkirchen. It flows from the Oster spring, southeast of the Füsselberg and northwest of the Mittelberg, in the northern foothills of the Weiselberg.

Initially, the Oster, flows along the Ostertal Railway from Fürth east to Oberkirchen and then south through the place where it the Oberkirchen Talbrücke crosses. From then on the stream continues in this direction to Hoof and then along the B420 via Marth and Niederkirchen to Werschweiler, where it leaves the Saar-Hunsrück Nature Park. It then flows through Dörrenbach and Fürth to Hangard.

Finally, the Oster, now flowing westward for its last few kilometers, joins the south-flowing Blies at Wiebelskirchen after a total drop of 210 metres (690 ft).

After being straightened over long stretches in the 1930s, 60s, and 70s, the Oster has been renaturalized piecemeal since 1990. In 1934 the Ostertal Railway, named for the stream, was constructed along its course.

• List of rivers of Saarland