|Location||South of Emyn Muil, east of Anduin|
|Description||A large trackless fen|
At the Nindalf the Anduin divided into many channels and formed marshlands in the east of the main channel of the river. Opposite of the Nindalf, on the west side of the Anduin the river Entwash flowed into the Anduin by many mouths in a great inland delta. The Dead Marshes lay further east and may have been an extension of Wetwang.
On 16 February T.A. 3019 Celeborn recommended to the Fellowship of the Ring that those heading to Minas Tirith should leave the river above the Falls of Rauros and cross the Entwash before it separates into many mouths in the marshes.
Wetwang is a real-life place-name in Yorkshire.
- J.R.R. Tolkien, "Unfinished index for The Lord of the Rings", in Wayne G. Hammond and Christina Scull (eds), The Lord of the Rings: A Reader's Companion, entry Nindalf, p. 334
- J.R.R. Tolkien, The Lord of the Rings, The Return of the King, "Map of Rohan, Gondor, and Mordor"
- J.R.R. Tolkien, The Lord of the Rings, The Fellowship of the Ring, "Farewell to Lórien", p. 373
- J.R.R. Tolkien, The Lord of the Rings, Appendix B, "The Great Years", entry for the year 3019, February, 16, p. 1092
- J.R.R. Tolkien, "Words, Phrases and Passages in Various Tongues in The Lord of the Rings", in Parma Eldalamberon XVII (edited by Christopher Gilson), p. 52
- J.R.R. Tolkien, "Nomenclature of The Lord of the Rings" in Wayne G. Hammond and Christina Scull (eds), The Lord of the Rings: A Reader's Companion, p. 779