National Wildlife Refuges in Wisconsin

Boardwalk on Horicon Marsh

Tagging cormorants

National Wildlife Refuges

• Fox River National Wildlife Refuge
• Gravel Island National Wildlife Refuge
• Green Bay National Wildlife Refuge
• Horicon National Wildlife Refuge
• Leopold Wetland Management District
• Necedah National Wildlife Refuge
• St. Croix Wetland Management District
• Trempealeau National Wildlife Refuge
• Upper Mississippi River National Wildlife and Fish Refuge
• Whittlesey Creek National Wildlife Refuge

The Gravel Island and Green Bay National Wildlife Refuges are on islands in Lake Michigan. These are basically small bird nesting islands devoid of vegetation and closed to the public.

Horicon NWR covers about two-thirds of the 33,000-plus acres of the Horicon Marsh, the other one-third of the marsh being in the hands of the Wisconsin Division of Natural Resources.