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

Refuge Seeks Input on Draft Compatibility Determination for Right of Way for Electric Power Cable

The Green Bay National Wildlife Refuge (Refuge) is soliciting public comments on a Draft Compatibility Determination (CD) that assesses the compatibility of the Washington Island Electric Cooperative’s Request for Right-of-Way to facilitate installation of a new 35kv electric power cable and associated lines across Plum Island. The Refuge is evaluating whether this request is compatible with the purposes for which the Refuge was established. The purpose of the Washington Island Electric Cooperative’s request is to replace a compromised existing submarine power cable that supplies all electricity to Washington Island. The public is invited to review these documents and provide comments to the Refuge by August 18, 2018. Please direct all comments in writing to: or: Horicon National Wildlife Refuge Attn: Refuge Manager W4279 Headquarters Road Mayville, WI 53050

Draft Compatibility Determination for Right of Way Plum Island
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