Collection of links on the site
Thornapple River Watershed Council
Thornapple River Environmental Issues (an old site with some history of airport concerns)
Thornapple Association (below Cascade Dam)
Facts about Zebra Mussels
More Facts about Zebra Mussels
National Weather Service River Flow at Caledonia
USGS River Flow at Hastings
Chart of Daily Flow at Hastings
USGS River Flow at LaBarge Dam Caledonia
Chart of Annual Flows at LaBarge Dam Caledonia
EPA Surf Your Watershed resource for the Thornapple River
GIS Mapping Services (requires Silverlight): REGIS | AccessKent
