"Go to the Lumber camp" is an objective in the side quest Tree Hugger in Tiny Tina's Assault on Dragon Keep DLC.
Walkthrough[edit]
Aubrey the Teenage Treant sends you here with her Sapling so it can wreak vengeance against the orcs there. Head to the East from her location to the Orc Village. Go to the first plaza in the lumber yard and you will get a new objective.
