Lonely Island (The Cottage of Lost Play):

This is the English name for Tol Eressëa. From the descriptions, Tol Eressëa is a fairly large island, with varied terrain. Apparently it would take several days of travel on foot to cross from one side to the other.

Related Entries:
Tol Eressëa (Cottage of Lost Play) | Tol Eressëa (Cottage of Lost Play Commentary)

The Book of Lost Tales One (HoME.I)
The Book of Lost Tales Two (HoME.II)
The Lays of Beleriand (HoME.III)
The Shaping of Middle-Earth (HoME.IV)
The Lost Road and Other Writings (HoME.V)
The Return of the Shadow (HoME.VI)
The Treason of Isengard (HoME.VII)
The War of the Ring (HoME.VIII)
Sauron Defeated (HoME.IX)
Morgoth's Ring (HoME.X)
The War of the Jewels (HoME.XI)
The Peoples of Middle-Earth (HoME.XII)