Public Use Information

Green Bay NWR Public Events and Volunteer Days

Explore Plum Island's natural treasures and help the Friends of Plum and Pilot Islands with improvement projects.

Green Bay Events 2018
Location & Hours

Location & Hours

Green Bay National Wildlife Refuge consists of Hog Island, Plum Island, Pilot Island St. Martin Island, and Rocky Island. The islands are located in Lake Michigan, near Washington Island, off the tip of Wisconsin's Door County Peninsula. The refuge is managed by staff at the Horicon National Wildlife Refuge Complex in Mayville, WI. Contact 920-387-2658 or greenbay@fws.gov. Plum Island is open to public use Memorial Day weekend - Labor Day weekend.

Plan Your Visit

About the Complex

Horicon Leopold Complex

Green Bay National Wildlife Refuge is managed as part of the Horicon Leopold Complex.

Read more about the complex
About the NWRS

National Wildlife Refuge System

NWRS Logo

The National Wildlife Refuge System, within the U.S. Fish and Wildlife Service, manages a national network of lands and waters set aside to conserve America's fish, wildlife, and plants.

Learn more about the NWRS