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 2019

Hunt and Fish Comment Period

You are invited to review and comment on proposed hunt and fishing changes for the Green Bay NWR.

2019 News Release for Hunt and Fishing Open House

Draft Compatibility Determination

The Horicon National Wildlife Refuge Complex (Green Bay, Gravel Island, Horicon, and Fox River National Wildlife Refuges) is proposing to allow Research, Scientific Collecting and Surveys by Third Parties to occur on the refuges. We are seeking public comment on allowing this use on the refuges. You are invited to review the draft compatibility determination document that includes our justification and analysis. This use has previously been allowed to occur on the refuge and through this process we are expanding opportunities for research, scientific collection, and surveys conducted by non-Service entities to contribute to the enhancement, protection, use, preservation, and management of wildlife populations and their habitats. These uses also help fulfill the mission of the National Wildlife Refuge System and the purposes of the refuge. The document is available May 15th through May 30th. Comments may be provided to or by phone 920-387-2658.

Draft Compatibility Determination Research, Scientific Collecting and Surveys by Third Parties
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 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


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