Proposed: Canal boats, based upon those along the Erie Canal in upstate New York during the 19th century. these are shallow draft boats, hauled by a team of two mules. In the game use horses, bison, bulls, etc. They can carry a LOT of cargo, including people, animals, and heavy bulky items, but move slowly. They would need to stay near the shoreline because they are hauled along by the animals, not sailed. This would give an option for moving groups of animals other than trailing them by ropes behind you. Also you could haul that BSB full of dirt, providing you had a way to get it to the canal. It would also encourage improvement of our canals.