The early fur traders setup the first log cabins in Dupage twp, along the river, where there was a large Pot tribe. Since the Pots were friendly, and Blackhawk would not have gone through their territory without getting wiped out, it might also have been the site of the fort.
The fort's history is only known as being, "NW of Joliet on the Dupage River." It's pretty sure it was in Will County and the most likely site is Dupage or Wheatland Twp. Either way, this is a great potential hunt site, those parts not under development or paved under already.
People like Major Anderson, who surrendered Fort Sumter was a young officer in Scotts ranks in pursuit of Blackhawk through these parts along with other notable militia people like Abe Lincoln. Any coin, button or buckle you find that way could have come from a real VIP of the past!