Coronavirus (COVID-19) Notice
Although most refuge lands and outdoor spaces have remained open for the public to enjoy, we ask that you recreate responsibly.

  • Check alerts and local conditions on this website and call ahead for current information. Operations vary based on local public health conditions.
  • Consistent with CDC recommendations, all visitors (age 2 and older), who are fully vaccinated are required to wear a mask inside of federal buildings in areas of substantial or high community transmission.. All visitors who are not fully vaccinated must continue to wear masks indoors and in crowded outdoor spaces.
  • Most importantly, stay home if you feel sick and continue to watch for symptoms of COVID-19 and follow CDC guidance on how to protect yourself and others.


  • Hiking trail 2

    Refuge Auto Tour and Hiking Trails

    3 mile driving loop and hiking trails.

    Horicon Refuge Trail Maps

  • Refuge Run Walk

    5K Run Walk for Wildlife

    Horicon NWR Refuge 5K Run/Walk CANCELLED for 2021. National Wildlife Refuge System's Virtual Walk/Run page

    Walk/Run for the Wild

  • 4thgrade

    Federal Recreation Passes

    Refuge is unable to issue at this time.


  • monarch_caterpillar

    Have Monarchs Arrived at Your House?

    Keep your eyes peeled. A great citizen science project tracks monarchs moving north. Report when you see the first butterfly, egg or larva.

    Track their progress.

Public Use Information

Facilities Updates

Refuge auto tour off Hwy 49 is open to vehicles. Visitor Center: Temporarily closed. America the Beautiful passes will not be available until Jan 1 2022. Discovery Trail open for hiking and porta potty available. Main Dike Rd: now open to vehicles as well as hiking and bicycling. Please note that starting October 14th there will be construction that will impede hikers and bicyclists from going entirely across the western portion of Dike Rd. Old Marsh Rd: currently closed for hiking and bicycling. Refuge open for fishing at bank fishing locations (Main Dike Road, Ledge Road, and Peachy Road). See maps for more information. Please remember to practice social distancing and avoid trails and parking areas that may be experiencing higher visitor use. Stay safe and enjoy! For more information email or call 920-387-2658.

Refuge Map

Public Programs and Events


Birding Information

Mixed Ducks Taking Off From a Wetland

Horicon National Wildlife Refuge Fall 2021 Migration Report 10/6/2021 This is week four of waterbird surveys at the refuge for the fall migration. SE WI continues to have exceptionally mild weather. Temperatures were in the 70’s all week. Canada goose numbers increased slightly this week. More than 40,000 were counted on the refuge. Flocks in the hundreds were seen flying out of the Refuge to feed in the surrounding harvested fields. Dabbling ducks were most numerous on this week’s survey –around 88,000. Top species seen in the thousands were mallards, green-winged teal, American wigeon, blue-winged teal, gadwall, Northern shovelers, and Northern pintails. Others seen in the hundreds included wood ducks, and black ducks. Diving duck numbers remained very low – around 300. Redhead ducks were the most numerous at 180. Other species spotted included ruddy ducks, a couple lesser scaup and ring-necked ducks, and a couple canvasbacks. Diving duck numbers are expected to increase in the next 2 weeks as fall progresses to cooler weather. Other sightings to note: •Clouds of green-winged teal were counted. Watch for flocks of ducks that resemble swarms of bees. Teal are masters of synchronized flight as they lift and drop back down to water. •Large rafts of American coot are gathering. Look along Ledge Road. Groups of 500+ were seen. •Sandhill crane numbers are increasing in the area – watch for flocks in the hundreds in farm fields – especially along the east side of the marsh. Flocks were seen feeding and dancing in harvested soybeans. The best viewing is often during the first 3 hours of daylight as they leave the marsh. Look along Ledge Rd, Point Rd, and Cty Hwy Z. •Yellowlegs continue bobbing and calling in the last impoundment along the auto tour. These are the last shorebirds of the migration. •Gull migration is nearing the fall peak. Nearly 2,000 ring-billed gulls are in the area. The auto tour route and Ledge road continue to be the best for wildlife viewing. Check out the last impoundment on the right- before the exit of the auto tour. Also, travel down the west section of Ledge Road that enters the marsh and look along the north side. This week 19 different species were spotted here. Happy Birding!

Horicon National Wildlife Refuge Bird Checklist

Trapping Information

Unit maps and auction information.

Visitor Activities
Location / Hours

Location & Hours

Horicon National Wildlife Refuge Headquarters/Visitor Center W4279 Headquarters Rd. Mayville, WI 53050. Phone: 920-387-2658 Refuge public use areas are open daily from dawn to dusk. Visitor Center - Temporarily closed. America the Beautiful Passes(annual,senior,access etc. are unable to be issued at our facility at this time. Please visit to purchase or call ahead to federal sites you plan to visit.

Plan Your Visit

About the Complex

Horicon Leopold Complex

Horicon 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