Watermill (Civ4)

The Watermill is a tile improvement in Civilization IV.
== Strategy ==
A Watermill can be built upon the discovery of Machinery. It adds production (and later food and commerce) to a tile, but can only be built on flatland next to a river. Watermills cannot be built on tiles which only touch a corner of a river. Only one Watermill can be built per tile-length of river.
== See also ==
* Watermill in other games