Mindeb

the river Mindeb was a river of Beleriand, a northern tributary to Sirion.

The Mindeb began in the Ered Gorgoroth near the Pass of Anarch, and was met by a tributary coming from the Crissaegrim. It formed the boundary between Dimbar and Nan Durgotheb.

It formed the western border of the forest of Neldoreth in Doriath and was part of the Girdle of Melian.

It is mentioned in Quenta Silmarillion chapter 14.