C
- Carnen
- A river of Rhovanion, also called Redwater. Carnen flowed southward from the Iron Hills east of the Lonely Mountain until it met Celduin about 250 miles to the south. From there the rivers flowed as one to the Sea of Rhûn, past the land of Dorwinion.
- The kingdom of Dale after its refounding extended into the angle between the Celduin and the Carnen. It is quite possible that the Men of Dale and Esgaroth and the Wood-elves traded along the rivers.
- Celduin
- A river of Rhovanion, also named the River Running. Celduin was a 600–miles long river that ran from the Lonely Mountain south through the Long Lake, where it was joined by the Forest River, and thence through the eastern outskirts of Mirkwood. Afterwards it flowed south east through the wide eastern plains of Rhovanion to its confluence with the Carnen, and finally in a long south-eastward loop to the great inland Sea of Rhûn, past the land of Dorwinion.
- Celebrant
- See Silverlode
- Celebros
- A tributary of Taeglin that flowed past Brethil forest. Glaurung was slain by Túrin near where this river met Taeglin, and Nienor Níniel committed suicide by jumping in it.
- Celon
- Flowed by Nan Elmoth in East Beleriand. It met up with the river Aros later in its course, eventually flowing into Sirion.
- Celos
- The Second of the Five Rivers of Lebennin in Gondor. It began in the White Mountains and became a tributary of Sirith.
- Ciril
- A river of Gondor, springing at an isolated peak in Lamedon. It flowed past Calembel and became a tributary of Ringló.
Read more about this topic: List Of Middle-earth Rivers