I'm with Sogroon on this, I think we don't really need the Mill building, and the Quern can just upgrade to the Bakery. Maybe rename the Bakery to Grain Mill or something like that?
Also I think that Levees and Irrigation Canals should go back to give +1 yield
hammers: or
respectively) to each river plot, instead of a small flat bonus.
Also I think that Levees and Irrigation Canals should go back to give +1 yield

