Bunker Keeper: "There is a lot of Stones all around, you can make Crushed stone, Cement and Blocks out of them. Pick up as much as possible, they will be useful."
Previous Task: Stone quarry
Requirement 1: Pick up Stones for production of materials (0/16)
Rewards: 30 
, 200 
Next Task(s): Mutual help, Building materials, Visit someone
Task Line: Earth Many Years Later