Nîn-in-Eilph.

Swanfleet.

Nîn-in-Eilph : translation from Sindarin = Waterlands of the Swans.

The great fens at the lower course and outflow into Mitheithel of river Glanduin above Tharbad and West of Ost-in-Edhil in Eregion. Swanfleet was a network of swamps, pools and eyots where the only inhabitants were hosts of swans and many other waterbirds.