Dwarves still in the Ered Mithrin?

[Kuruharan]

The reference in question is...

In the Dwarvish traditions of the Third Age the names of the places where each of the Seven Ancestors had "awakened" were remembered; but only two of them were known to Elves and Men of the West: the most westerly, the awakening place of the ancestors of the Firebeards and the Broadbeams; and that of the ancestor of the Longbeards, the eldest in making and awakening/ The first had been in the north of the Ered Lindon, the great eastern wall of Beleriand, of which the Blue Mountains of the Second and later ages were the remnant; the second had been Mount Gundabad (in origin a Khuzdul name), which was therefore revered by the Dwarves, and its occupation in the Third Age by the Orks of Sauron was one of the chief reasons for their great hatred of the Orks.
-"Of Men and Dwarves" The Peoples of Middle-earth