Marengo - A) Snake Trail Rd (FR 194) to Marengo Lake Rd (FR 384) (6.6 miles) (WI)
Approximate - nearest available gauge. Use as general reference only.
USGS lists a sampling site with drainage area 23.9 square miles.
Just downstream, immediately after a sharp right (North), the river may encounter a bit of a dike of rock creating a bit of a pinch. There may be a very brief drop/rapids. (Or not.)