Looking across to the Breastshot mill, a small commercial mill like this would be found near small towns & be able to supply the surrounding area with flour.

 

The Powder mill can be seen in the foreground, the building imbedded in the bank would be a safe storage area for the finished product. Until the invention of corned gunpowder - a method by which all the ingredients were ground together whilst wet & formed into cakes which were then reground when dry into the finished product -the  individual ingredients would frequently seperate in transit

which would weaken the powder considerably having been only roughly stirred in the barrel before loading the charge

        POWDER MILL