Sugar River (Pecatonica River tributary)

Sugar River
Sugar River watershed map
Physical characteristics
Source 
  locationDane County north of Mount Horeb, Wisconsin
  coordinates43°01′22″N 89°43′22″W / 43.0227778°N 89.7227778°W / 43.0227778; -89.7227778 (Sugar River origin)
  elevation1,164 ft (355 m)
Mouth 
  location
Confluence with the Pecatonica south of Shirland, Illinois
  coordinates
42°26′08″N 89°11′50″W / 42.4355556°N 89.1972222°W / 42.4355556; -89.1972222 (Sugar River mouth)
  elevation
718 ft (219 m)
Length91 mi (146 km)
Basin features
ProgressionSugar River → Pecatonica → Rock → Mississippi → Gulf of Mexico
GNIS ID1575030

The Sugar River is a tributary of the Pecatonica River, approximately 91 miles (146 km) long, in the U.S. states of Wisconsin and Illinois.