Nîn-in-Eilph
From Tolkien Gateway
Nîn-in-Eilph was the expansive wetland region on the borders of Eriador that formed where the River Glanduin flowed into the Hoarwell to form the Gwathló or Greyflood. Its name is Sindarin for "waters of the swans". It was known to Men as Swanfleet.
