Turn Back the Fog

 is a side quest in the Fallout 4 add-on Far Harbor.

Synopsis
Small Bertha wants to find a new home for some of the derelicts in Far Harbor. She needs the survivor to clear out any threats at Echo Lake Lumber Mill.

Walkthrough

 * 1) Talk to Bertha once the Rite of Passage is complete.
 * 2) Head to Echo Lake and terminate everything with extreme prejudice. Return to Bertha once you're done.
 * 3) Talk to Captain Avery about the fog condensers.
 * 4) Whatever you say, the Echo Lake Lumber Mill will become a workshop settlement.