Protect Our Reservoirs. Protect Our Water. Protect Our Community
Golden mussels are an invasive species spreading across parts of California - and they pose a serious threat to Santa Clara County's reservoirs, water supply, and recreation. Together, we can keep them out.
What are Golden Mussels?
Golden mussels are freshwater mussels that attach to boats, trailers, docks and water infrastructure. They reproduce rapidly and spread easily between waterbodies on boats and gear. Once established, they are very difficult to control.
Why They're a Threat?
How can you help?
Stopping golden mussels starts with a simple habit every boater and angler can follow.

California State Park Boating and Waterways
Purchase a mandatory mussel-free sticker. Stay informed with real time reservoir status updates and statewide golden mussel detection maps.
Purchase a mandatory mussel-free sticker. Stay informed with real time reservoir status updates and statewide golden mussel detection maps.
Santa Clara County Parks and Recreation
All watercraft will be subject to inspection. Be prepared for inspection by having your vessel CLEAN, DRAIN, and DRY.
All watercraft will be subject to inspection. Be prepared for inspection by having your vessel CLEAN, DRAIN, and DRY.
California Department of Fish and Wildlife
We’re partnering with local organizations, marinas, fishing clubs, HOAs, and community groups to expand prevention outreach.
We’re partnering with local organizations, marinas, fishing clubs, HOAs, and community groups to expand prevention outreach.