Brega Hoard Map
Between Tullagh Laght and Armagh in the north
The map can be found on the road next to one of the destroyed carts and a treasure chest.
It shows a forest with roads and three circles.
Go to the south. There's Boyne Tombs.
This is the big circle on the Brega Hoard Map drawing.
The smaller tomb you are looking for is between Tullagh Laght Waypoint and Boyne Tombs.
It's not the Bandit Camp.
At the base of this northern small tomb is the treasure:
Na Pucai Scheme (Schields)