Naugrim

To Be Done, message Dawn1747. If you have any questions :p I'm on Silm, Reforged, and DAC discords.

Lore:

Sometime during the Years of the Trees two Dwarven Fathers awoke under Mount Dolmed and founded the two westernmost houses of the Dwarves (the Firebeards and Broadbeams). They subsequently built two great city-states, Nogrod and Belegost.

They were initially friendly to the Elves of Beleriand, renowned as craftsmen and jewelers, such as Gamil Zirak whose works were to be found in the treasuries of King Thingol of Doriath, and Telchar known for the forging of weapons. Dwarves from the Blue Mountains, perhaps also those of Nogrod, aided the Noldor in the building of Nargothrond.

Dwarves of Nogrod, as well as their kinsmen of Belegost, participated in the Union of Maedhros supplying them with soldiers and weapons.

Some craftsmen from Nogrod stayed in Menegroth and were asked by King Thingol of Doriath to set the Silmaril in the Nauglamir. But they coveted the Nauglamir they made and killed Thingol in his treasury, and fled, only to be slaughtered by the avenging Elves who killed all but two. The survivors returned to Nogrod, and lied to their kinsmen saying that Thingol refused to pay the craftsmen and for their work and killed them.

Although the Dwarves of Belegost refused to aid them, they formed a great host which passed over Sarn Athrad intimidating the Sindar who fled before them. In the sack the Menegroth they ravaged the Caves and Thingol's treasures. But on their return home they were hunted down by Beren Erchamion and killed by his army of Green-elves and a group of Ents at the Battle of Sarn Athrad.

The Blue Mountains were ruined during the War of Wrath at the end of the First Age, and in the south central end of the range the sea broke through. The River Lhûn now flowed through the mountains to the Gulf of Lune. On the western side a small section of Lindon remained, and here the retreating Elves built the kingdom of Lindon, ruled by Ereinion Gil-galad, last High King of the Noldor.

The Dwarven cities of Nogrod and Belegost were also ruined when the mountains were broken, causing most of the Dwarves to migrate east to Khazad-dûm, leaving a remnant behind. However, there remained some Dwarves on the eastern side of the Blue Mountains in days afterwards.