After defeating Morgoth's armies in the Dagor-nuin-Giliath, the Ñoldor in the early First Age were halted at Dor Deadeloth in their march after Fëanor, who had pressed on to Angband to face the Dark Lord himself, was mortally wounded by Balrogs.
The Ñoldor then encircled the land (at least in the south), starting the Siege of Angband. It is probable that they built a number of fortresses and outposts there, but they must have been destroyed or taken over by the enemy during Dagor Bragollach.
The area perished with the rest of the Beleriand at the conclusion of the War of Wrath at the end of the First Age.
|Foreign Language||Translated name|
|Chinese (Hong Kong)||戴德洛斯|
|Danish||Dor Daedeloth ("Rædselsskyggen Land")|