Hunt unit · Lake Mason National Wildlife Refuge

North Unit Hunt Unit Map & Access

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The North Unit is one of 4 mapped hunt units on Lake Mason National Wildlife Refuge in Musselshell County, MT. It covers approximately 5,293 acres and is listed as “open to hunting” for 2026–2027. Hunting generally follows state seasons and bag limits, along with general refuge rules.

Navigate to unit Refuge overview Official hunt info ↗
5,293acres
Openstatus 2026–27
Norefuge permit
Musselshell Countycounty

North Unit map

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OpenSpecial regulationsClosedFWS-owned landWPA (public)Refuge boundaryEasement (private) Tip: switch to Satellite or USGS Topo in the layer menu · click the map for GPS coordinates
Downloads (whole refuge):KMLGPX

Rules & permits for this unit

Status: Open to hunting

Hunting follows Montana seasons, bag limits and licensing, plus general National Wildlife Refuge rules.

Game at Lake Mason NWR

Species listed for the refuge as a whole — a special-regulation unit may be limited to certain species. Confirm in the hunt brochure.

Getting to the North Unit

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Destination: center of the North Unit

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Decimal
46.72278, -108.78900
DMS
46°43′22.0″N 108°47′20.4″W

Nearest towns

  • Lewistown, MT38 mi SE of town
  • Billings, MT67 mi N of town
  • Jordan, MT98 mi SW of town

Straight-line distances. Driving routes are longer; many refuge roads are gravel and may close seasonally.

The navigation point is a point inside the unit polygon, not necessarily a parking area or legal access point. Use satellite view to find roads, gates and designated parking, and respect closed areas and private inholdings.

Shooting hours at this unit

Today at North Unit

Legal light*–
Sunrise–
Sunset–

*½ hour before sunrise — the standard federal shooting-hour start for migratory game birds. Times in Denver local time.

Full season calculator →

2026–2027 season sun table

DateShooting lightSunriseSunsetDaylight
Tue, Sep 1, 20266:03 AM6:33 AM7:57 PM13h 24m
Tue, Sep 15, 20266:21 AM6:51 AM7:29 PM12h 38m
Thu, Oct 1, 20266:42 AM7:12 AM6:57 PM11h 45m
Thu, Oct 15, 20267:01 AM7:31 AM6:30 PM10h 59m
Sun, Nov 1, 20266:25 AM6:55 AM5:01 PM10h 06m
Sun, Nov 15, 20266:46 AM7:16 AM4:43 PM9h 26m
Tue, Dec 1, 20267:08 AM7:38 AM4:30 PM8h 52m
Tue, Dec 15, 20267:22 AM7:52 AM4:27 PM8h 35m
Fri, Jan 1, 20277:29 AM7:59 AM4:36 PM8h 37m
Fri, Jan 15, 20277:25 AM7:55 AM4:51 PM8h 56m
Mon, Feb 1, 20277:10 AM7:40 AM5:16 PM9h 36m

Computed for 46.723, -108.789 (MDT / DST-aware). Check state rules — big game hours vary.

Weather forecast

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Forecast from the National Weather Service. Wind direction matters — plan your approach downwind of where game beds.

Other units at Lake Mason NWR

UnitStatusAcresPermit
South Half LakeOpen1,392—
Willow Creek UnitOpen2,139—
North Half LakeClosed2,421—

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