Mouths of Sirion

Beleriand
J. R. R. Tolkien's legendarium location
Type	large region
Notable locations	- main realms and regions - Arvernien, Doriath, East Beleriand, Falas, Nargothrond, Nevrast, Ossiriand, Taur-im-Duinath, West Beleriand - other places in Beleriand - Amon Ereb, Estolad, Himlad, Maglor's Gap, March of Maedhros, the Sirion, Thargelion, Tol Sirion - associated places to Beleriand's north - Angband, Ard-galen, Dorthonion, Gondolin, Hithlum
Location	north-west Middle-earth
Lifespan	Start of Years of the Trees to end of First Age

In J. R. R. Tolkien's fictional legendarium, Beleriand was a region in northwestern Middle-earth during the First Age. Events in Beleriand are described chiefly in his work The Silmarillion, which tells the story of the early ages of Middle-earth in a style similar to the epic hero tales of Nordic literature. Beleriand also appears in the works The Book of Lost Tales,The Children of Húrin, and in the epic poems of The Lays of Beleriand.

Originally, the name belonged only to the area around the Bay of Balar, but in time, the name was applied to the entire land. Beleriand was originally inhabited by Elves, and later also by Men and Dwarves. To the west and south it had a long shore with the Great Sea Belegaer, to the north were the highland regions of Hithlum, Dorthonion and the hills of Himring, to the east the Ered Luin reached nearly to the sea. The land of Nevrast in the northwest was sometimes considered part of Beleriand.

The River Sirion, the chief river of Beleriand, running north to south, divided it into West Beleriand and East Beleriand. Crossing it east to west was a series of hills and a sudden drop in elevation known as Andram, the Long Wall. The river sank into the ground at the Fens of Sirion, and re-emerged below the Andram at the Gates of Sirion. To the east of the Long Wall, was the River Gelion and its six tributaries draining the Ered Luin, in an area known as Ossiriand, or the Land of Seven Rivers. The River Brithon and the River Nenning were the two lesser rivers of the western land of Falas.

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