Thornapple River Watershed Data

For your information:

• Lakes in the watershed: 227
• Total number of acres of lakes: 7843.9
• There are 741.5 total river miles
• There are 346.8 perennial river miles
• The area of the watershed is 876.43 sq miles
• The watershed perimeter is 173.3 miles

  The watershed is classified by the EPA as:

• 0% urban
• 42% forest
• 91% agricultural
• The watershed includes parts of Kent, Barry, Eaton, Ionia, and Allegan Counties.
• The watershed flows through 37 Michgan townships.
• The headwaters of the main river are in Eaton County.
• Barry county has more Thornapple River tributaries than any other county.