a
river that flows
east/
south-east out of the
Mirrormere lake in the
Nanduhirion valley, through the land of
Lórien .. to eventually meet with the
Anduin river.
known among Men as the Silverlode, the Dwarves, Kibil-nâla.
(see J.R.R. Tolkien and read The Lord of the Rings)