Minnesota DNR Confirms Zebra Mussels in Traverse Lake

The Minnesota Department of Natural Resources confirmed the presence of zebra mussels in Traverse Lake, located near Browns Valley in Traverse County on October 1, 2026. The discovery stems from a property owner who contacted state officials after finding the invasive species attached to equipment removed from the water for the seasonal storage.

Traverse County Park Discoveries

Following the initial report, a Department of Natural Resources invasive species specialist visited the site and verified the findings. The specialist confirmed that zebra mussels were attached directly to the property owner’s dock and boat lift. Additional specimens were discovered attached to rocks at Traverse County Park, situated about three miles away from the initial report location.

Because Traverse Lake borders South Dakota, state officials took immediate cross-border action. The Minnesota Department of Natural Resources contacted South Dakota Game, Fish and Parks to coordinate regarding the aquatic invasive species confirmation.

Seasonal Equipment Removal Risks

State wildlife officials note that several new zebra mussel populations across Minnesota lakes in recent years were first detected during end-of-season equipment removals. Property owners and lake service providers pulling docks, boats, and boat lifts routinely spot the invasive species during these seasonal tasks, providing a good reminder to carefully check all water-related equipment when removing them for seasonal storage.

State law mandates strict cleaning procedures for anyone handling water-related gear. Operators must clean watercraft, trailers, and equipment to eliminate aquatic plants and prohibited invasive species. Boaters must also drain all water and leave drain plugs out during transport, dispose of unwanted bait in the trash, and avoid releasing bait, plants, or aquarium pets into Minnesota waters. Docks, lifts, and rafts must dry for 21 days before moving to another water body.

DNR Website Lists Free Decontamination Stations

Additional steps to reduce the risk of spreading aquatic invasive species include decontaminated watercraft and equipment by finding free stations on the courtesy decontamination page of the DNR website.