It is in Elvenbane, about 13 steps north of the spot the map marks with that name.

• 1 — Elvenbane, as the map itself names it
• 2 — the ground above the treasure

• Something for dragon, demon skeleton and orc berserker — they live down there.

• 1-4 — the chests

There are 4 chests here under 4 quest numbers, so you can take them all.