Iron Mine

Iron Mines must be built next to an (brown rocks). You may only place 2 Iron Mines on each deposit.

Work
An Iron Mine has a base output of per year.
 * Master workers mine 20% faster for up to per year.
 * Tools increase production by 100%

An Iron Mine with Tools, but no Master workers, produces per year.

An Iron Mine with Tools and Master works produces the maximum of per year.

Cons

Houses Built Within a 2 Square Radius will Receive a -5 Happiness De-buff due to the loud noises produced by the Iron Mine.