Little Thornapple River (Coldwater River tributary)

Little Thornapple River
Location
CountryUnited States
Physical characteristics
Source 
 • locationJordan Lake in Woodland Township, Barry County, Michigan
Mouth 
 • location
Coldwater River
 • elevation
797 ft (243 m)
Discharge 
 • locationmouth
 • average45.2 cu ft/s (1.28 m3/s) (estimate)
Basin features
River systemGrand River

The Little Thornapple River is a 5.8-mile-long (9.3 km) river in Barry County in the U.S. state of Michigan.

The Little Thornapple rises from the outflow of Jordan Lake in north-central Woodland Township, at coordinates 42°45′38″N 85°08′43″W / 42.76056°N 85.14528°W / 42.76056; -85.14528 (Little Thornapple River (source)).

The stream flows primarily southwest and empties into the Coldwater River in central Carlton Township at coordinates 42°42′50″N 85°13′41″W / 42.71389°N 85.22806°W / 42.71389; -85.22806 (Little Thornapple River (mouth)).

The Little Thornapple, with Jordan Lake tributaries, forms an important part of the upper Coldwater River watershed. The Little Thornapple is considered to form the headwaters of the Coldwater River.

Lake Jordan is fed primarily by the outflow of Tupper Lake, which in turn is fed by Tupper Creek all in Odessa and Sebewa townships in Ionia County.