Mineshaft

These structures are good at providing ores or gems.
They can choose between the following rewards:

- 1 small pouch of faction related steel/iron/bronze igots

- 2 stacks of glowing blocks (Glowstone, Edhelmir, Durnaur, Gulduril)

- 2 stacks of gems.- 1 stack of silver or gold ignots

- 10 mithril ignots (In the misty mountains only!)

- 1 stack of Lapis Lazuli blocks (In the Great Desert and Near-Harad only!)

Requirement-

Must be built in a village, town or capital.

Must have a decent and supported mining tunnel.

Build must have a way to "transport the riches out of the tunnel". (Railway, camels, slaves, etc)

Must contain a storage.

Advantage-

Generates free materials.

Disadvantage-

Provides no trader.