General Information Invasive species: The Wisconsin Department of Natural Resources has identified many species as invasive species in NR 40 as they threaten local ecosystem functioning and biodiversity levels. Aquatic Invasive Species (AIS) in Florence County have been identified, are being monitored, and in if possible are being treated. Florence County is a partner with the Wild Rivers Invasive Species Coalition, a cooperative partnership working across five counties in northeast Wisconsin and the Upper Peninsula of Michigan to stop the spread of invasive species. Florence County lakes currently with zebra mussels Lake Emily Keyes Lake Loon Lake Pine River Flowage Sea Lion Lake Spread Eagle Chain of Lakes Florence County Lakes currently with invasive watermilfoil Barrens Lake Lake Ellwood Frog Lake Keyes Lake Menominee River--Twin Falls Flowage and Badwater Pine River Flowage Sea Lion Lake Seidel Lake Spread Eagle Chain--North and Middle Lake Follow us for updates on Instagram @florencelandconservation Contact:  Shawna Dishaw - Conservation Technician/AIS Coordinator Phone: 715-528-3483 ex.2102 Click here to email Mailing Address:  P.O. Box 410 501 Lake Ave. Florence, WI 54121 Hours:  Monday-Friday 8-4