Gold mines are located along the sides of funny looking mesas. There are 'warehouses' scattered through the maps, and these will hold gold, and sometimes guns. Upon arriving to the horse, he decided that it would make a better steak than a mount for one of my men at arms. Not the result I wanted. The ability to catch horses and use them is an interesting twist.
Mounted troops tend to do more damage, as well as move faster.
The goal of any RTS ultimately lies in the combat, and America is no exception. There are a plethora of units to develop. From Barbers to Gauchos every known Wild West stereotype is available. Each faction has its own unique functions. Outlaws can live on liquor alone.