Mountains, or hills, in RimWorld, are a natural structure that contain resources and special rooms.
Shells fired from mortars or drop pods will break through constructed roofing but not through overhead mountains (or any tile underneath one).
Many resources can naturally be found in mountains, such as minerals, stone, and even loot!
Minerals and metals come in deposits called veins. They can be found in mountains and hills. They are found easier if the terrain that you landed on is either: Small Hills, Large Hills, or Mountainous.
|Resource||Drops (Max)||Vein Size||Hitpoints||Rarity||Mining Speed|