About Lake Mason National Wildlife Refuge
The following are the Lake Mason National Wildlife Refuge units:Lake Unit contains a 1,220-acre wetland - Lake Mason, and totals in excess of 6,216-acres in size. It hosts spectacular numbers of waterfowl and wading birds. During periods of dryness, exposed mudflats on the lake provide increased opportunities for shorebirds to feed. Mixed-grass prairie and shrublands make up most of the uplands around the lake. Several fields farmed prior to acquisition by the Service have been seeded to a dense nesting cover mixture of grasses and legumes for wildlife. The prairie dog town located within the unit provides critical habitat for burrowing owls, horned larks, killdeer, thick-billed longspur, and mountain plovers, a Montana species of concern. *The southern portion of this Refuge unit is open to hunting, wildlife observation, and wildlife photography. The northern portion of this Refuge unit is designated as permanent refugia for wildlife and is thus closed to all public entry and hunting. Willow Creek Unit is 1,976-acres in size and is primarily comprised of intact native short-grass prairie with sagebrush occurring along the southern boundary. This undisturbed short and sporadic mixed-grass prairie also contains abundant woody shrubs such as winterfat and saltbush. Pronghorn and mule deer are present in this unit, as well as occasional elk. Prairie dogs are also present and can provide critical habitat for occasional mountain plovers – a Montana bird species of concern. Similarly, western meadowlarks, along with other birds of state conservation concern such as the long-billed curlew, chestnut-colored longspur, and thick-billed longspur may also be found here. Their songs in spring and summer add to the intrinsic value of this Refuge unit. This Refuge unit is open to hunting, wildlife observation, and wildlife photography. A cultural inventory of this unit revealed evidence of prehistoric occupation associated with buffalo hunts. During the late 1910s, most of the lan
How to Get There
Lake Mason National Wildlife Refuge consists of three separate tracts of land: Lake Mason Unit, Willow Creek Unit, and North Unit. To access the 13,589-acre Lake Mason Unit, turn south from Highway 87 on 4th Street West in Roundup. Proceed 1 block and turn west on the Golf Course Road. Continue for 6.5 miles, then turn north and proceed 2 miles to the refuge boundary.The 2,240-acre Willow Creek Unit is 22 miles northwest of Roundup, Montana. To access the Willow Creek Unit, proceed 11 miles north of Roundup on Highway 87. Turn west on Snowy Mountain Road (also Forest Service access to the Little Snowy Mountains), and drive 13.8 miles to the unit.The 5,323-acre North Unit is located 24-miles northwest of Roundup, Montana. For access to the North Unit, drive north of Roundup 11 miles on Highway 87, and turn west on the Snowy Mountain Road (also Forest Service access to the Little Snowy Mountains). After 7 miles, turn north on the Graves Road and continue 7.3 miles, then turn west again on a small, two-track trail. The refuge lies 2.2 miles west of the Graves Road.
Driving directions (Google Maps) →Plan Your Visit to Lake Mason National Wildlife Refuge
Heading to Lake Mason National Wildlife Refuge? A few things to know before you go:
- Reservations: popular sites fill up fast — check Recreation.gov 6 months in advance
- Fees: day-use and camping fees vary; check current rates on the official park page
- Trash & pack-out: follow Leave No Trace principles
- Wildlife: store food in bear boxes where provided; never feed wildlife
- Weather: the 5-day forecast above is updated every 6 hours; verify just before you go
Frequently Asked Questions
Do I need a reservation for Lake Mason National Wildlife Refuge?
No central reservation system listed for Lake Mason National Wildlife Refuge. Check the official page (https://www.recreation.gov/recarea/1474) for the latest entry policy and availability.
How do I get to Lake Mason National Wildlife Refuge?
Lake Mason National Wildlife Refuge consists of three separate tracts of land: Lake Mason Unit, Willow Creek Unit, and North Unit. To access the 13,589-acre Lake Mason Unit, turn south from Highway 87 on 4th Street West in Roundup. Proceed 1 block and turn west on the Golf Course Road. Continue for 6.5 miles, then turn north and proceed 2 miles to the refuge boundary.The 2,240-acre Willow Creek Un…
How do I contact Lake Mason National Wildlife Refuge?
You can reach the park at phone: 406-538-8706 or email: cortez_rohr@fws.gov.
References & Official Resources