Union Slough NWR
Kossuth County, IA · 3.8 mi SW
2.8K huntable acres
Wetland Management District · Iowa · FWS Region 3
Located in Kossuth County, Iowa, Iowa Wetland Management District is managed by the U.S. Fish and Wildlife Service, with about 27,593 acres of land owned in fee by the U.S. Fish and Wildlife Service. For the 2026–2027 season the refuge has 5 mapped hunt units: 1 open under general rules, 3 open with special regulations, and 1 closed, covering about 27,523 huntable acres.
Hunt units are colored by 2026–2027 status. Toggle layers for FWS-owned land, the approved refuge boundary and private easements. Use satellite imagery to scout marshes, timber edges and access points.
Permitted hunting categories are big game, waterfowl, wild turkey, upland birds, migratory birds, small game, and feral & exotic, subject to state seasons and refuge-specific rules. Fishing is available — freshwater fishing.
Some of the best waterfowl hunting opportunities in central Iowa can be found in one of the waterfowl production areas (WPAs) in 17 counties that make up the Iowa WMD.
Categories are those listed by USFWS for this station; exact species, seasons and bag limits follow Iowa regulations plus refuge-specific rules.
| Unit | Status | Acres | Permit | Details |
|---|---|---|---|---|
| WPA Open | ✓Open | 26,218 | — | |
| Buffalo Creek Bottoms | !Special regs | 168 | — | |
| Core Area | !Special regs | 303 | — | |
| Waterfowl Refuge | !Special regs | 834 | — | |
| No Hunting Area | ✕Closed | 5.7 | — |
Not listed
USFWS does not list a separate refuge permit for this station. Specific units or hunts (e.g. quota deer hunts) may still require one — check the hunt brochure.
As they are in much of the Prairie Pothole Region, fishing opportunities are limited and scattered through 35-county Iowa Wetland Management District.
State fishing licenses and regulations apply. Some waters close seasonally to protect wildlife.
Destination: Iowa Wetland Management District (FWS reference point)
43.28382, -94.1105443°17′01.8″N 94°06′37.9″WStraight-line distances. Driving routes are longer; many refuge roads are gravel and may close seasonally.
The navigation point is the station reference location published by USFWS — often the headquarters or main entrance. For a specific hunt unit, open its page or click it on the map for coordinates and parking planning.
*½ hour before sunrise — the standard federal shooting-hour start for migratory game birds. Times in Chicago local time.
Full season calculator →| Date | Shooting light | Sunrise | Sunset | Daylight |
|---|---|---|---|---|
| Tue, Sep 1, 2026 | 6:09 AM | 6:39 AM | 7:54 PM | 13h 15m |
| Tue, Sep 15, 2026 | 6:24 AM | 6:54 AM | 7:29 PM | 12h 34m |
| Thu, Oct 1, 2026 | 6:42 AM | 7:12 AM | 6:59 PM | 11h 48m |
| Thu, Oct 15, 2026 | 6:58 AM | 7:28 AM | 6:35 PM | 11h 07m |
| Sun, Nov 1, 2026 | 6:20 AM | 6:50 AM | 5:09 PM | 10h 19m |
| Sun, Nov 15, 2026 | 6:38 AM | 7:08 AM | 4:53 PM | 9h 45m |
| Tue, Dec 1, 2026 | 6:58 AM | 7:28 AM | 4:43 PM | 9h 15m |
| Tue, Dec 15, 2026 | 7:11 AM | 7:41 AM | 4:41 PM | 9h 00m |
| Fri, Jan 1, 2027 | 7:18 AM | 7:48 AM | 4:50 PM | 9h 02m |
| Fri, Jan 15, 2027 | 7:15 AM | 7:45 AM | 5:04 PM | 9h 18m |
| Mon, Feb 1, 2027 | 7:02 AM | 7:32 AM | 5:26 PM | 9h 53m |
Computed for 43.284, -94.111 (CDT / DST-aware). Check state rules — big game hours vary.
Loading National Weather Service forecast…
Forecast from the National Weather Service. Wind direction matters — plan your approach downwind of where game beds.
Yes. Iowa Wetland Management District offers hunting in 4 units (27,523 acres) during 2026–2027 for big game, waterfowl, wild turkey, upland birds, migratory birds, small game, and feral & exotic. Seasons follow state regulations plus refuge-specific rules in 50 CFR Part 32.
FWS data does not list a separate refuge hunting permit for Iowa WMD. You still need a valid state license, any required state tags or stamps, and (for waterfowl hunters 16+) a Federal Duck Stamp.
Yes. Fishing is permitted (freshwater fishing). State fishing licenses and regulations apply along with refuge rules.
Iowa Wetland Management District is in Kossuth County, Iowa, about 47 miles W of Mason City, IA (straight-line). GPS: 43.28382, -94.11054.
Migratory game bird shooting hours are generally one-half hour before sunrise to sunset; big game and other seasons follow state rules. See the sunrise/sunset table on this page and confirm in the refuge hunt brochure.
Kossuth County, IA · 3.8 mi SW
2.8K huntable acres
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Data: USFWS National Hunt Units 2026–2027, Hunting & Fishing Opportunities, Realty Boundaries & Tracts. Page updated September 29, 2026.