Rapid - N.Rock Road/38th Road to Bay du Noc (PnP, or up to 27 miles) (MI)
Approximate - nearest available gauge. Use as general reference only.
End of 1st third of run, which is a lot of flatwater, with random, short bits of riffles and rips.
FWIW, USGS lists a sampling site citing drainage area of 55 square miles at this point.