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About the Refuge

About the Station

Green Bay National Wildlife Refuge consists of Hog Island (2 acres), Plum Island (325 acres) and Pilot Island (3.7 acres). The islands are located in Lake Michigan, near Washington Island, off the tip of Wisconsin’s Door Peninsula. 

In 1912, Hog Island was set aside as a preserve and breeding ground for native birds. Green Bay National Wildlife Refuge became the 28th refuge in the U.S. and second in the Great Lakes region. Hog Island and nearby Gravel Island National Wildlife Refuge (Gravel and Spider Islands) make up the Wisconsin Islands Wilderness Area.

Plum and Pilot Islands were transferred from the U.S. Coast Guard to the U.S. Fish and Wildlife Service in 2007. The islands were acquired to protect additional migratory bird and endangered species habitat in the Great Lakes Basin Ecosystem. All public use is prohibited on Hog and Pilot Islands due to ground nesting by migratory birds and the limited and treacherous access. Public use on Plum Island is currently limited to special events offered by the Friends of Plum and Pilot Islands.

Green Bay National Wildlife Refuge is currently completing a comprehensive conservation plan. Public use opportunities may be offered in the future provided they are compatible with the refuge’s purpose and mission.

The refuge is managed by staff at the Horicon National Wildlife Refuge Complex in Mayville WI. Contact 920-387-2658 or 

Last Updated: Aug 27, 2013
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