|Population When Inactive||-1|
|Size||3 x 3|
|Sell Price||10 10|
|Reward for Assisting||15|
|Reward for Raiding||30|
|Reward for Occupation||114|
- "With the Coal Mine, you too can contract the Black Lung and die at an unnaturally early age! Also, Coal is a vital ingredient if you want to produce Steel."
- — In-game Description
A Coal Mine allows the player to harvest Coal out of the two Coal Deposits on the map. Coal is one of the two ingredients in Steel. This means players should think about tapping into both Coal Deposits on the outpost territory.
An Adv. Coal Mine allows players to harvest Coal at twice the rate of a normal Coal Mine.
Alternatively, Coal Bins can be purchased to increase coal production of each Coal Mine.