Little Eau Pleine - old RR right-of-way off Marsh Road to Mann/River Rd (9.3 or 3.4 mi) (WI)
Likely less than 50 cfs: almost certainly too low for reasonable whitewater run.
A low-water bridge (driveway) passes through the river at this point. At boatable flows, this will essentially act as a low-head dam. Safest passage will be far left.