"The Oelse is a river in the district Oder-Spree, Brandenburg, Germany. It is situated in the Schlaube Valley Nature Park and runs from the M\u00F6schensee (lake) in the east from Gro\u00DF Muckrow (part of Friedland) to the river Spree nearby Beeskow. Its name derives from the sorbian ol'\u0161a for German Erle (Alder)."@en . "68.3"^^ . . . "Oelse"@en . . "40.4"^^ . .