*Facilities - Please check this page for up-to-date facility information regarding weather-related and management closures.
Old Marsh Rd is open June 1 through August 31 for hiking and bicycling. Access is limited to the road only - adjacent dikes are closed. Please remember to keep a safe distance from birds and other wildlife to limit disturbance and enjoy!
Guided Bird Hikes on Old Marsh Road - June 6,11, 20, 25 (6:30-8:30 a.m.) - Join a volunteer guide on an early morning hike to view and learn about nesting black-necked stilts and yellow-headed blackbirds on the refuge as well as other wetland birds. Program is free but advance sign-up is required by calling the refuge visitor center at 920-387-2658. Hikes have limited slots and fill fast so sign up early. Bring sun and bug protection, water, hat and comfortable shoes as round-trip hike may be up to four miles.
Guided Whooping Crane Walks on Egret Trail Boardwalk - June 11, July 9, August 13 September 10, October 8 (9:00-10:00 a.m.) - Join guides from the International Crane Foundation and Horicon NWR to learn about the history and management of whooping cranes in Wisconsin while enjoying a mile hike on the floating boardwalk to look for cranes and other birds. Meet at the Egret Trail boardwalk parking lot on the refuge auto tour (N5445 Highway 49 Waupun, WI). Program is free and advance sign up is not required.
Visit Us
National wildlife refuges offer us all a chance to unplug from the stresses of daily life and reconnect with our natural surroundings. Many opportunities exist to enjoy Horicon National Wildlife Refuge including opportunities for wildlife observation, photography, hiking, fishing, educational programs, guided tours, bicycling, snowshoeing, cross country skiing, deer and upland game hunting and trapping.
Location and Contact Information
About Us
The northern two-thirds of Horicon Marsh is managed by the U.S. Fish and Wildlife Service as the 22,000 acre Horicon National Wildlife Refuge. The southern third of the marsh, 11,000 acres, is managed by the Wisconsin Department of Natural Resources as Horicon Marsh State Wildlife Area. At more than 33,000 acres, Horicon Marsh is one of the largest freshwater marshes in the United States and is a critical rest stop for thousands of migrating ducks and Canada geese. It is recognized as a Wetland of International Importance, as both Globally and State Important Bird Areas and is also a unit of the Ice Age Scientific Reserve.
Horicon National Wildlife Refuge was established in 1941 to provide an undisturbed sanctuary for a number of migratory birds and waterfowl including the redhead duck as well as to provide opportunities for people to connect with nature.
Our Species
At more than 33,000 acres in size, Horicon Marsh is the largest freshwater marsh in the United States. Recognized as a Wetland of International Importance, as both Globally and State Important Bird Areas and a unit of the Ice Age Scientific Reserve, the marsh provides critical habitat for more than 300 species of birds as well as muskrats, red foxes, turtles, frogs, bats, dragonflies, fish and much more. Fall migration on the refuge offers impressive numbers of Canada geese, ducks and sandhill cranes while spring migration offers a variety of unique waterbirds and songbirds.



