Reach Armag's tomb

Armag and the Sisters searched for the tomb for many years — and after they found it, they went there in haste and forgot to tell us where they were going. Fortunately, we know its location — on the Glenebon Uplands. We can go there to search for it ourselves... Or we can take advantage of the situation and send scouts there! Or maybe, something else can help us in our search... Or someone?