Bloody Lake Rendezvous
Gathering of Pre-1840 historical reenactors including primitive encampment, activities, trade, music and friendly competition.
Bloody Lake Rendezvous https://www.facebook.com/events/914370262468167?active_tab=about hosted by the Yellowstone Flint and Cap Club https://www.facebook.com/Yellowstone-Flint-Cap-Club-102488211401046
May 3rd-May 8th, Looks like it's $2 for general admission. Friday is school day.
Blackhawk Memorial Park near Woodfield, WI on the Pecatonica River - A bit of a drive, but we have a beautiful state to see.
30 Views

Its a bit farther on, but there are several additional points of interest in that direction. One is the National Mississippi River Museum and Aquarium in Dubuque IA. https://www.rivermuseum.com/
When we visited there it was OFF season in Feb (read cheaper) and we stayed in Galena, IL at the DeSoto House Hotel. https://desotohouse.com/ Galena itself has many points of interest and is a fun shopping town. https://www.visitgalena.org/
Galena has The Grant House, former residence of Ulysses S. Grant. The tour is inexpensive and very good and running in the off season. I believe much of the house is outfitted with actual articles that the Grants themselves used. https://www.granthome.org/
And the DeSoto hosted many notable historical figures namely President Lincoln. They still have the original staircase that President Lincoln must have used to travel to and from his room.