A bag of unmixed cement.
Scrap Bag of Cement to get the following materials:
- Concrete: 7
- New River Gourge Bridge
- Right of Monongah Overlook
- Monorail Elevator West of Fort Defiance has 10 Bags
- Posidon Energy Plant 6x bags spread out. *lostavenger*
- If you find it in more locations, add it here!