Missing the Monarchs?
While many monarchs head to Mexico for the winter, others overwinter in Texas, California, or Florida.
Save the Monarch
One Marsh, Three Centers
Horicon Marsh has three visitor centers, one federal, one state and one non-profit.
Three Centers and Friends
Refuge National Map
Check out details of Refuges across the United States. Set the zoom for detail.
National Refuge System
Expansion of the Green Bay NWR
The Green Bay National Wildlife Refuge adds another 1290 acres with the additions of St. Martin Island and Rocky Island.
Location and Hours, Mayville, WI
The Refuge visitor center is open year-around.Hours
About the Complex
Horicon National Wildlife Refuge is part of a Complex that includes three other refuges and one wetland management district.
Horicon is managed as part of the Horicon Leopold Complex.
Learn more about the complex
About the NWRS
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
Originally established for this species, the Refuge supports the largest nesting population of redhead ducks east of the Mississippi River. Thousands use the marsh each year.
Page Photo Credits All photos courtesy of USFWS unless otherwise noted.
Last Updated: Nov 17, 2015