Leff (river)

Leff
Location
CountryFrance
Physical characteristics
MouthTrieux
  coordinates
48°43′38″N 3°07′56″W / 48.7271°N 3.1322°W / 48.7271; -3.1322
Length62.4 km (38.8 mi)
Basin features
ProgressionTrieuxEnglish Channel

The Leff (Breton: Leñv) is a river in Brittany, France. It is 62.4 km (38.8 mi) long. It flows into the Trieux near Pontrieux.