A letter from a Ranger hiding in the north among a band of Hillmen who have thrown free the yoke of Angmar tells that they are in need of help beyond the Ram Dúath.
Talk to Corunir at Aughaire
Aughaire is an encampment of Hillmen, north through the Ram Dúath.
Corunir's letter requests aid for the warriors standing against the oppressive Angmarim.
The letter that starts this quest was in the Gift for a Hero box.