Big Muddy NFWR
Cooper County, MO · 59 mi SE
21.9K huntable acres
National Wildlife Refuge · Missouri · FWS Region 3
Swan Lake National Wildlife Refuge lies in Chariton County, Missouri, with about 11,728 acres of land owned in fee by the U.S. Fish and Wildlife Service. For the 2026–2027 season the refuge has 8 mapped hunt units: 7 open with special regulations and 1 closed, covering about 11,672 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.
Hunters can pursue big game, waterfowl, wild turkey, upland birds, migratory birds, and small game here, subject to state seasons and refuge-specific rules. Fishing is available — freshwater fishing. A refuge permit is required for at least some activities, in addition to your state license.
Migratory bird hunting, upland game hunting and big-game hunting were expanded in 2015. Swan Lake National Wildlife Refuge was established to protect habitat for ducks and prairie chickens.
Categories are those listed by USFWS for this station; exact species, seasons and bag limits follow Missouri regulations plus refuge-specific rules.
| Unit | Status | Acres | Permit | Details |
|---|---|---|---|---|
| Bates | !Special regs | 230 | Required Other |
Waterfowl |
| Main Refuge | !Special regs | 8,767 | Required Other |
Waterfowl |
| North Entrance | !Special regs | 305 | Required Other |
Waterfowl |
| Perimeter | !Special regs | 973 | Required Other |
Waterfowl |
| Truman Reservoir | !Special regs | 446 | Required Other |
Waterfowl |
| Yellow Creek Bottom | !Special regs | 901 | Required Other |
Waterfowl |
| Yellow Creek Triangle | !Special regs | 51 | Required Other |
Waterfowl |
| Closed | ✕Closed | 37 | Required Other |
Waterfowl |
Required
Waterfowl
Type: Other
How to get it:
Major species include carp, buffalo and bluegill. Fishing season is March 1-October 15. Boat motors on Silver Lake are restricted to 10 hp or less.
State fishing licenses and regulations apply. Some waters close seasonally to protect wildlife.
Destination: Swan Lake National Wildlife Refuge (FWS reference point)
39.61147, -93.1849139°36′41.3″N 93°11′05.7″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 | 6:10 AM | 6:40 AM | 7:46 PM | 13h 06m |
| Tue, Sep 15, 2026 | 6:22 AM | 6:52 AM | 7:23 PM | 12h 31m |
| Thu, Oct 1, 2026 | 6:37 AM | 7:07 AM | 6:57 PM | 11h 50m |
| Thu, Oct 15, 2026 | 6:51 AM | 7:21 AM | 6:35 PM | 11h 14m |
| Sun, Nov 1, 2026 | 6:10 AM | 6:40 AM | 5:12 PM | 10h 32m |
| Sun, Nov 15, 2026 | 6:26 AM | 6:56 AM | 4:58 PM | 10h 02m |
| Tue, Dec 1, 2026 | 6:43 AM | 7:13 AM | 4:50 PM | 9h 36m |
| Tue, Dec 15, 2026 | 6:55 AM | 7:25 AM | 4:49 PM | 9h 24m |
| Fri, Jan 1, 2027 | 7:03 AM | 7:33 AM | 4:58 PM | 9h 25m |
| Fri, Jan 15, 2027 | 7:01 AM | 7:31 AM | 5:11 PM | 9h 39m |
| Mon, Feb 1, 2027 | 6:51 AM | 7:21 AM | 5:30 PM | 10h 10m |
Computed for 39.611, -93.185 (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. Swan Lake National Wildlife Refuge offers hunting in 7 units (11,672 acres) during 2026–2027 for big game, waterfowl, wild turkey, upland birds, migratory birds, and small game. Seasons follow state regulations plus refuge-specific rules in 50 CFR Part 32.
Yes — Swan Lake National Wildlife Refuge requires a refuge permit for some or all hunting. Permit type: Other. Permits can be obtained other. You also need the appropriate state hunting license and, for waterfowl, a Federal Duck Stamp.
Yes. Fishing is permitted (freshwater fishing). State fishing licenses and regulations apply along with refuge rules.
Swan Lake National Wildlife Refuge is in Chariton County, Missouri, about 23 miles SE of Chillicothe, MO (straight-line). GPS: 39.61147, -93.18491.
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.
Cooper County, MO · 59 mi SE
21.9K huntable acres
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Data: USFWS National Hunt Units 2026–2027, Hunting & Fishing Opportunities, Realty Boundaries & Tracts. Page updated September 29, 2026.