P
- Poros
- A river in the south of Gondor. It forms the northern border of the contested land of the South Gondor, and the southern border of Ithilien. During the later Third Age it was the effective southern border of Gondor.
- About 400 miles (640 km) long, it began in the Ephel Dúath of Mordor and then flowed south-west for about 300 miles (480 km), when it bent north and met Anduin just before its delta. Poros was crossed by the Harad Road at the Crossings of Poros.
Read more about this topic: List Of Middle-earth Rivers