How to unlock
Deliver 20 load points with Logs found outside a Lumber Location.
Secret Lumber Yard (manual loading) can be found on the Coast (2), River (Beta) and Hill maps.
Getting logs from an autoload lumber site, then dropping the load and manually loading them will not count toward Scavenger. For this reason, if you lose a manual load while driving and have to repack it, it will not count toward Scavenger.