Guide:
Eastern Shadowfen, northeast of Forsaken Hamlet Wayshrine, north-northeast of Camp Merciful Reduction.
Inside the “Broken Tusk” solo dungeon. Start at Forsaken Hamlet Wayshrine and go northwest, toward the beginning of the river flowing south. As soon as you come to the river you will see the stone building on the other side. Entrance to the dungeon is inside. Skyshard is located in the second, northern hall.