Grass Lake NWR
Stillwater County, MT · 6.1 mi SE
1.7K huntable acres
National Wildlife Refuge · Montana · FWS Region 6
Hailstone National Wildlife Refuge is located in Stillwater County, Montana, with about 156 acres of land owned in fee by the U.S. Fish and Wildlife Service. For the 2026–2027 season the refuge has 1 mapped hunt unit: 1 open under general rules, covering about 156 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, and migratory birds, subject to state seasons and refuge-specific rules.
During wet periods, waterfowl hunting is possible on the creek. Hunters should check carefully before planning a trip here. During drought, most wetlands dry up in the fall and waterfowl hunting is nonexistent.
Categories are those listed by USFWS for this station; exact species, seasons and bag limits follow Montana regulations plus refuge-specific rules.
| Unit | Status | Acres | Permit | Details |
|---|---|---|---|---|
| Hunt Unit Show on map · Directions |
✓Open | 156 | — |
With about 156 huntable acres, Hailstone NWR ranks #21 of 23 refuges and stations with mapped hunting land in Montana and #402 of 420 nationwide. Roughly 100% of the acreage inside its mapped hunt units is open to hunting in some form.
The largest huntable unit is Hunt Unit (156 acres).
5 Waterfowl Production Areas lie within 35 miles; the closest is Hailstone WPA (1,766 acres, 1 miles S).
Typical U.S. season windows for the game categories offered here. Montana sets the exact dates, and refuges often open fewer days than the statewide season — use this to plan scouting, then confirm the 2026–2027 dates in the state regulations and the refuge hunt brochure.
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.
USFWS does not list fishing opportunities for Hailstone NWR.
Destination: Hailstone National Wildlife Refuge (FWS reference point)
46.01962, -109.1732746°01′10.6″N 109°10′23.8″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 Denver local time.
Full season calculator →| Date | Shooting light | Sunrise | Sunset | Daylight |
|---|---|---|---|---|
| Tue, Sep 1, 2026 | 6:06 AM | 6:36 AM | 7:57 PM | 13h 22m |
| Tue, Sep 15, 2026 | 6:23 AM | 6:53 AM | 7:30 PM | 12h 37m |
| Thu, Oct 1, 2026 | 6:43 AM | 7:13 AM | 6:59 PM | 11h 46m |
| Thu, Oct 15, 2026 | 7:01 AM | 7:31 AM | 6:32 PM | 11h 01m |
| Sun, Nov 1, 2026 | 6:25 AM | 6:55 AM | 5:04 PM | 10h 09m |
| Sun, Nov 15, 2026 | 6:46 AM | 7:16 AM | 4:46 PM | 9h 30m |
| Tue, Dec 1, 2026 | 7:07 AM | 7:37 AM | 4:34 PM | 8h 57m |
| Tue, Dec 15, 2026 | 7:21 AM | 7:51 AM | 4:31 PM | 8h 40m |
| Fri, Jan 1, 2027 | 7:28 AM | 7:58 AM | 4:40 PM | 8h 42m |
| Fri, Jan 15, 2027 | 7:24 AM | 7:54 AM | 4:55 PM | 9h 01m |
| Mon, Feb 1, 2027 | 7:10 AM | 7:40 AM | 5:19 PM | 9h 40m |
Computed for 46.020, -109.173 (MDT / 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.
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Yes. Hailstone National Wildlife Refuge offers hunting in 1 unit (156 acres) during 2026–2027 for big game, waterfowl, wild turkey, upland birds, and migratory birds. Seasons follow state regulations plus refuge-specific rules in 50 CFR Part 32.
FWS data does not list a separate refuge hunting permit for Hailstone NWR. You still need a valid state license, any required state tags or stamps, and (for waterfowl hunters 16+) a Federal Duck Stamp.
Hailstone National Wildlife Refuge is in Stillwater County, Montana, about 36 miles NW of Billings, MT (straight-line). GPS: 46.01962, -109.17327.
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.
Stillwater County, MT · 6.1 mi SE
1.7K huntable acres
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Data: USFWS National Hunt Units 2026–2027, Hunting & Fishing Opportunities, Realty Boundaries & Tracts. Page updated October 28, 2026.