Hill of Himring

To the south of the wide plain of Lothlann, the northern mountain-fences of Beleriand gave way in the east to a lowland region. The mountains ended in a jumble of low hills, surrounding a single bare hill with a broad, flat summit: the Hill of Himring. From this cold place sprang the river known as Little Gelion, one of two sources that came together to form the long river Gelion that bordered East Beleriand.

After the Return of the Noldor, Maedhros the eldest son of Fëanor came to the hill, and built the greatest of his citadels on its flat summit. After this time, the guarded lands around the Hill of Himring became known as the March of Maedhros. That citadel stood for many centuries, and withstood the onset of the Dagor Bragollach, that swept away many of the Elves' forces and defences. It was apparently destroyed in the War of Wrath: at least, by the end of the Third Age, all that remained of the Hill of Himring was a solitary island, Himling, lying off the northwest coasts of Middle-earth.