Dos Rios: Valley of the Two Rivers - Two mighty rivers wind their way down from the mountains. The fields through which they flow are fruitful, bringing wealth to their owners. Harvest fields with campesinos, gathering riches to build homes and create a prosperous estate. The rivers are the life blood of the land. With skillful placement of dams, you can alter the course of the rivers and bring prosperity to your land. That which was dry will now produce, that which was productive may now be barren. The one who best controls the rivers will control the valley, for the flow of the river carries fortune's tide. - Mayfair Games