Helevorn
From Tolkien Gateway
Helevorn was the deep, mountain-shaded lake in the cold lands northeast of Beleriand. Caranthir had his capital on its shores, but its waters were defiled during the Dagor Bragollach.
Helevorn was the deep, mountain-shaded lake in the cold lands northeast of Beleriand. Caranthir had his capital on its shores, but its waters were defiled during the Dagor Bragollach.