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

  • Check local conditions on this website and call ahead for current information. Operations vary based on local public health conditions.
  • Face masks are required in all federal buildings and on all federal lands.
  • Maintain a safe distance between yourself and other groups.
  • Wash your hands often with soap and water for at least 20 seconds
  • Avoid touching your eyes, nose and mouth
  • Cover your mouth and nose when you cough or sneeze
  • Most importantly, stay home if you feel sick


  • Hiking trail 2

    Refuge Auto Tour and Hiking Trails

    3 mile driving loop and hiking trails.

    Horicon Refuge Trail Maps

  • 4thgrade

    Federal Recreation Passes

    Refuge is unable to issue at this time.


  • Horicon National Wildlife Refuge Visitor Center

    Horicon Marsh Visitor Centers

    Horicon Marsh has three visitor centers, one federal, one state and one non-profit.

    Three Centers and Friends

  • Mexico Monarchs AnnMarie Krmpotich/USFWS

    Monarchs On the Move

    The monarchs have left their wintering grounds in Mexico. Future generations of monarchs will make their way back to us this spring.

    Track their progress.

  • American woodcock by Peter Rea.

    New Hunting Opportunities

    The Horicon National Wildlife Refuge is expanding their hunt program.

    Learn more.

Public Use Information

Facilities Updates

Public Notice: Fire crews will be starting spring prescribed burn season so facilities may be closed periodically. Please check ahead before your visit. Refuge auto tour off Hwy 49 is open to vehicles. Visitor Center: currently closed to the public. Discovery Trail open for hiking and porta potty available. Main Dike Rd: now open to vehicles as well as hiking and bicycling (bicycling conditions are currently rough due to recent roadwork) Old Marsh Rd: currently closed to hiking and bicycling for spring bird migration. (April 23-25th Old Marsh Rd Special Opening to Hiking & Bicycling in honor of Earth Day) Refuge remains 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 local, stay safe and enjoy! For more information email or call 920-387-2658.

Refuge Map

Public Programs and Events


Birding Information

Horicon National Wildlife Refuge Spring 2021 Migration Report Horicon National Wildlife Refuge Spring 2021 Migration Report 5/5/2021 This is week eight of waterbird surveys at the refuge for the spring migration. Dabbling ducks were the most numerous waterfowl group this week. Their numbers total about 4,000 on this week’s survey. Three species had numbers over 1,000 - green-winged teal, blue-winged teal and mallards. Northern shovelers and gadwall were seen in the hundreds. There are still a few wigeon and Northern pintails hanging around. Diving duck numbers dropped to 550 this week. Six different species were seen this week. Redheads were the most numerous at just over 200. Ruddy ducks, ring-necked ducks both had around 100. Only a couple buffleheads, hooded mergansers, and scaup remain in the area. Canada goose numbers increased to 2,300 this week. The increase is from all the new broods being seen out and about. Other sightings to note: •Canada geese have hatched. You may notice some adult pairs with 20-30 young following them. Some adult pairs are aggressive and may “kidnap” another pairs young. They will keep and raise them as their own. •Watch for pairs of redhead ducks. Redheads nest at Horicon marsh. The pairs you see are looking for the best nesting spot in dead cattail. •Shorebird viewing continues to be best around the auto tour loop. •Black terns made their return to the marsh. They can be seen around the auto tour loop. •Common gallinules were spotted this week. A pair was seen along the floating boardwalk. Look for the bright red bill with a yellow tip. They will likely nest in that area. Happy birding!

2021 Waterbird Blog May 5
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 - CURRENTLY CLOSED to the public due to COVID. Please note that 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