Silent Cartographer
Uncommon34.1%GrindOptionalAnywhere
Survey 50 Sites with your Binoculars.
Look on your map for binocular symbols; these indicate billboards and radio towers. Go to them, climb them, use the aim button to look. you'll see question marks for distant places of interest; stare at them to survey/unlock. You'll need a few towers to get all 50. This is another easy grind :)