Sarge's clues

Sarge's clues are three paper notes in the Fallout 4 Creation Club content "Solar Cannon."

Location

 * The first note can be found on Jack in a cabin at South Boston military checkpoint during Burned on the River.
 * The second note is found in the safe of the Red Rocket station northeast of Big John's Salvage.
 * The third note can be found in a safe in a red doghouse, just east of the Red Rocket station. The combination to the safe is hidden on a nearby billboard for Back Alley Bowling.

Related quest

 * Burned on the River