From Tolkien Gateway

Afros was a river in Tol Eressëa, joining the Gruir at the bridge of Tavrobel, according to the early version of the legendarium in The Book of Lost Tales.[1]

The Battle of the Heath of the Sky-roof, which took place during the Faring Forth, and ended in complete disaster for the Elves of Tol Eressëa, took place near Tavrobel.

Following the battle, the remaining Elves, and in one outline, Eriol, fled across the rivers Afros and Gruir in order to escape the invading Men.[2]


The two rivers of Tavrobel, Afros and Gruir, might have been inspired by the rivers Sow and Trent, which meet near the village of Great Haywood (which was the inspiration for Tavrobel).[3][4]