Rapid River (Ontonagon County, Michigan)

Rapid River
Location
CountryUSA
StateMichigan
RegionUpper Peninsula
CountyOntonagon County
Physical characteristics
Source 
  locationBergland Township, Ontonagon County, Michigan
  coordinates46°36′51″N 89°42′54″W / 46.61417°N 89.71500°W / 46.61417; -89.71500
MouthBig Iron River
  location
Bergland Township, Delta County, Michigan
  coordinates
46°37′56″N 89°39′3″W / 46.63222°N 89.65083°W / 46.63222; -89.65083

The Rapid River is a 4.5-mile-long (7.2 km) river on the Upper Peninsula of the U.S. state of Michigan. It rises in Bergland Township and flows mostly east into the Big Iron River.