Thornapple River Watershed Group, P.O. Box 341, Caledonia, Michigan 49316
Listed in order from Grand River to headwaters, with townships in parenthesis.
NOTE: this list is by no means complete. There are many small un-named tributaries that are not listed here.
Kent County
- Schoolhouse Creek (Cascade)
- McCords Creek (Cascade, Lowell, Caledonia)
- Kraft Creek (mouth at Alaska)(Caledonia)
- Emmons Creek (Caledonia)
- Barber Lake Creek (Caledonia)
- Tyler Creek (trib of Coldwater) (Bowne, + Campbell and Eaton in Ionia County)
- Coldwater River (Caledonia, +Irving, Carlton, Woodland in Barry)
Ionia County
- Duck Creek (trib of Coldwater)(Campbell, Odessa)
- Bear Creek (trib of Coldwater)(appears to be Tyler Creek on map, see above)
- Jordan Lake system drains into Little Thornapple in Barry (Odessa in Ionia)
Barry County
- Duncan Lake Creek (Thornapple)
- Coldwater River (Carleton, Irving)
- Little Thornapple River (Woodland, Carlton, + Odessa in Ionia)
- Bassett Creek (Yankee Springs, Thornapple)
- Hill Creek (Yankee Springs)
- Glass Creek (Rutland, Yankee Springs Orangeville, Hope)
- Podunk Creek (trib of Glass Creek, Rutland)
- Two un-named creeks downstream of Algonquin Lake (Irving, Rutland)
- Algonquin Lake outlet (is there one?) (Rutland)
- Butler Creek (Hastings)
- Fall Creek (Hope, Rutland, Hastings)
- Cedar Creek (Johnstown, Baltimore, Hope, Hastings)
- Pratt Creek (Hastings)
- High Bank Creek (Johnstown, Baltimore, Maple Grove, Castleton)
- Mud Creek (Castleton, Woodland, + Sunfield in Eaton)
- Gravel Creek (trib of Mud Creek)(Woodland, Castleton)
- Hagar Creek (trib of Mud Creek)(Woodland, + Sunfield in Eaton)
- High Bank Creek (Grove, Johnstown, Baltimore, Maple Grove)
- Quaker Brook (Maple Grove)
Eaton County
- Scipio Creek (Vermontville)
- Shanty Brook (Kalamo, Vermontville)
- Lacey Creek (Bellevue, Kalamo, Vermontville)
- Thompson Creek (Vermontville)
- Darken & Boyer Drain (Chester, Roxland)
- Cole Wright Helms Drain (Chester, Oneida)
- Little Thornapple River (another one)(Carmel, Chester)
- Baker Drain (trib of Little Thornapple) (Carmel, Chester)
- Thornapple Drain (Benton)
- Sharp Drain (upper part ofThornapple Drain)(Delta)
- Butternut Creek (Eaton, Benton)
- King Lake Drain (Windsor)
- Boody Lake Creek (Eaton, Eaton Rapids)