The Forest Preserve is a tile improvement that can be built upon the discovery of the Scientific Method. It adds happiness (and possibly commerce) to a tile and increases the chance that the forest or jungle will spread. It was added in Civilization IV: Beyond the Sword.
|Civilization IV Improvements |
|Camp • Cottage (Hamlet • Village • Town) • Farm • Fishing Boats • Forest PreserveB • Fort • Lumbermill • Mine • Offshore Platform • Pasture • Plantation • Quarry • Roads and railroads • Watermill • Well • Whaling Boats • Windmill • Winery • Workshop|
|B Added in Beyond the Sword|