Sub-domain of Hithlum. In the South-East of Hitlum 70 Miles between the Mountains of Mithrim and the spur of Ered Wethrin dividing Dor-Lomin from Newrast further East and North / South 75 Miles from Cirith Ninniach to Ered Wethrin. Dor-Lomin was assigned to Fingon; son of Fingolfin. In the angle between the mountains of Mithrim and Ered Wethrim was the house of Hurin and the stream Nen-Lalaith came running down from the mountains and Amon Darthir.