The Mill Creek watershed spans Davidson and Williamson Counties in Middle Tennessee and includes all or part of the communities of Donelson, Woodbine, Glencliff, Antioch, Brentwood, Nolensville, and everywhere in between.

This includes YOU: the residents, students, parents, teachers, farmers, builders, citizens, businesses, government officials, and agency representatives - anyone who lives, works, or plays in the Mill Creek watershed.


The Mill Creek Watershed Association was formed in 2009 by a collaboration of organizations with a common goal. MCWA was rejuvinated in 2013 by the Cumberland River Compact with the support of the Tennessee Department of Agriculture Division of Forestry. Our common goal is to provide education and support for improving and protecting the beautifully unique Mill Creek Watershed.


Get invloved by joining the MCWA! 

Our growing initiative needs support from people just like you…regular folks who every day use our limited resource to shower, drink, clean, fish, swim and more.

Please check the calendar and sign up for upcoming volunteer opportunities, meetings, and events.  

Watersheds 101


The Nashville crayfish (Orconectes shoupi) remains the signature species for the Mill Creek watershed, the only place in the world where this species resides.

Its preferred habitat includes free-flowing waters dominated by large slab rocks atop a bedrock substrate.  The crayfish is present in main stem Mill Creek and numerous tributaries of various sizes, and in certain areas is the most abundant crayfish species.