This article is about the river in Michigan. For other uses, see Thornapple River (disambiguation).
River in Michigan, United States
Thornapple River
Enhanced USGS Satellite Image, Thornapple River drainage basin.
Native name
Sowanquesake(Ottawa)
Tomba-Signe[1]
Location
Country
United States
State
Michigan
Counties
Drainage basin covers portions of Barry, Eaton, Ionia, and Kent Counties in Central Michigan
Physical characteristics
Source
• location
S of Boody Lake, Eaton Township, Eaton County, Michigan
Mouth
• location
Grand River, Ada Township, Kent County, Michigan
• elevation
617 ft (188 m)[2]
Length
88 mi (142 km)
Discharge
• location
mouth
• average
838.49 cu ft/s (23.743 m3/s) (estimate)[3]
The Thornapple River (Ottawa: Sowanquesake, "Forked River")[4] (GNIS ID #1075813[5]) is an 88.1-mile-long (141.8 km)[6] tributary of Michigan's longest river, the Grand River. The Thornapple rises in Eaton County, Michigan and drains a primarily rural farming area in Central Michigan. It joins the Grand in Ada, Michigan, 10 miles (16 km) east of Grand Rapids.
^Siegel 1993, p.21
^Elevation of the Grand on topographic map from USGS via Microsoft Research Maps
^United States Environmental Protection Agency. "Watershed Report: Thornapple River". watersgeo.epa.gov. Archived from the original on 2021-07-01. Retrieved 2021-07-01.
^Collections and Researches Made by the Pioneer and Historical Society of the State of Michigan. Vol. 38. Lansing, MI: Wynkoop Hallenbeck Crawford Company. 1912. p. 659.
^"U.S. Board on Geographic Names | U.S. Geological Survey".
^U.S. Geological Survey. National Hydrography Dataset high-resolution flowline data. The National Map Archived 2012-03-29 at the Wayback Machine, accessed May 19, 2011
The ThornappleRiver (Ottawa: Sowanquesake, "Forked River") (GNIS ID #1075813) is an 88.1-mile-long (141.8 km) tributary of Michigan's longest river, the...
unincorporated community ThornappleRiver, Michigan ThornappleRiver (Wisconsin) Thornapple Trail, Michigan Brutus P. Thornapple, the main character in...
Little ThornappleRiver may refer to: Two rivers in Michigan, both part of the ThornappleRiver system Little ThornappleRiver (Coldwater River) Little...
River ThornappleRiver Little ThornappleRiver Brunet River Couderay River North Fork Chief River Teal River Token Creek Moose River Rush River Trimbelle...
The ThornappleRiver Drive Bridge is a road bridge in Cascade Township, Michigan, carrying ThornappleRiver Drive over the ThornappleRiver. It was listed...
Carrying Bronson Street across the ThornappleRiver, it is located just south of where the Thornapple enters the Grand River, in turn just south of M-21. It...
Island. He took over her trading post located where the Grand River meets the ThornappleRiver in what is now known as Ada. By 1827, Robinson was successfully...
Winneconne, Wisconsin. For six years, he maintained a log dam on the ThornappleRiver. By the time the standoff ended he was a national hero. He was found...
Global Information