I will say i used what i had read off of E of A on the Carn dum entry, and the entrys about the seven dwarf fathers. I tried to link together this info and make speculation on it. It also said the other two pairs of fathers were, it was either more than or about 1000 miles away from Khazad-dum. That does point towards khand, but since there is no history of khand other than its warriors fighting in two battles against gondor, this is all theory.
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