Keep our waterways open to boating recreation!
If brought into a local waterway, a thumbnail-sized mussel called quagga and zebra mussels could force the closure of popular boating recreational waterways. This website is dedicated to educating our community about the threat the mussels pose to recreational opportunities, our environment and economy.
There are currently no quagga or zebra mussels in North Coast waterways, including Lake Sonoma, Lake Mendocino and Ruth Lake – let’s keep it that way. Immediately report a mussel sighting – please call 1-877-STOP-ANS (1-877-786-7267).
North Coast Consortium
North Coast communities and local governments are working together to prevent the spread of invasive quagga and zebra mussels into our waterways.
About the Consortium
Mussel Infestation Map
There are currently no quagga or zebra mussels in North Coast waterways. View map of the California waterways quagga and zebra mussels have infested so far.
View Map of Infestation
The mussels can colonize on hulls, engines, and steering components of boats. Learn how to inspect your watercraft before entering a waterway.