Welcome to the Mill Creek Watershed Interactive Map!
The Mill Creek Watershed covers a 166-square mile area and drains the western half of Greater Cincinnati, eventually flowing into the Ohio River.
Use the map below to search within the watershed and locate points of interest around where you live, work, and play. Click View in ArcGIS Online to view data for specific Mill Creek Volunteer Water Quality Monitoring sites and to select which map layers are displayed. Combining innovative data collection tools with sophisticated map engines brings the vision of a restored Mill Creek to life.
The development of this map was made possible through a grant from the United States Environmental Protection Agency. Thank you.