In Epoch Mod, you can scavenge many materials from your environment using the Hatchet, Chainsaw, and Sledgehammer.
Materials that you can scavenge and their purposes:
Metal Scraps via Sledgehammer or Maul
Used for: Smelting Small Salvage Metal via Fireplace
Rocks via Sledgehammer or Maul
Used for: Crafting Improvised Tools.
Cinder Blocks via Sledgehammer or Maul
Used for: Crafting base pieces such as the Cinder Wall.
Iron Ore via Sledgehammer or Maul from boulders(large rocks)
Uses: Smelting Metal Scraps via Fireplace.
Sticks via Bushes using a Hatchet or Crude Hatchet.
Uses: Crafting Fireplace and Improvised Tools.