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Brush Lake State Park

Visit this deep, clear lake with white, sandy beaches surrounded by grass fields, ideal for swimming and wildlife viewing, boating and waterskiing.

About the Park

Brush Lake is a deep, clear lake with beaches surrounded by grass fields and spring wheat.

This mile long lake offers public access for swimming and is ideal for wildlife viewing, motorized boating and water skiing. 

The Northeast portion of the lake includes a day use area with a boat ramp, dock and picnic area, along with a 12-site campground which consists of (10) electric campsites and (2) double campsite with electricity.

Due to the high alkali content of it's crystal clear waters, Brush Lake does not support any significant fish life.


  • Beach
  • Bird Watching
  • Boating
  • Camping
  • Canoeing
  • Group Camping
  • Hiking
  • Hunting
  • Motor Boating
  • Picnicking
  • RV Camping
  • Swimming
  • Tent Camping


Some amenities are seasonal. Check with the park for availability.

  • ADA Accessible
  • Boat Launch
  • Campsite
  • Dock
  • Electricity
  • Established Fire Pits
  • Parking
  • Pets Allowed
  • Trash Removal
  • Water

Seasons & Hours

Hours listed below are normal operating hours and may not apply when there is a special restriction or closure. Check Alerts and Closures in the tab below.

Open May 1 - January 1 depending on snowfall
Day use hours: 7 am to 10 pm.


Open May 1 - January 1 depending on snowfall

Potable water
Yes - depending on the weather

Alerts & Closures

Restrictions and Closures

See a current list of Restrictions and Closures on State Parks and other FWP lands that may be affected by floods, fire, drought or major maintenance activities.


Contact the park manager for open volunteer positions at Brush Lake State Park.

For complete position descriptions, application forms, and details about Montana State Parks volunteer programs, visit the Volunteers page.

Park Rules


Montana Residents

  • Montana residents who pay the $9 state parks fee with their annual vehicle registration have no daily entrance fees to state parks. For residents who don't include this in their vehicle registration, non-resident day use fees apply.



  • Day use entrance fee with a vehicle: $8
  • Day use entrance fee as a walk-in, bicycle or bus passenger: $4
  • With a Nonresident Entrance Pass: Free



  • Campsite fees range from $4-$34 per night, depending on season and available amenities.

To check fees or reserve Brush Lake campsites, click here.

Contact Information

Mailing Address:
Brush Lake State Park

c/o Region 6 Headquarters
1 Airport Rd
Glasgow, MT 59230

Park Phone: 406-483-5455 (During open season only)
Regional Office Phone: 406-228-3700
Email: Region 6 Headquarters


Reservation Phone Number:


Aquatic Invasive Species

Help protect Montana's waters

AIS can be easily spread from one waterbody to the other. Anglers, boaters, construction workers, pond owners, gardeners, seaplane pilots, field workers - virtually anyone who works or plays in or around water can unknowingly transport these pests on their boats and equipment. It takes only one mistake to potentially infest a new water body.

Prevent the spread of AIS 

Brush Lake State Park


1733 Brush Lake Rd.
Dagmar, MT 59219
(48.60300 / -104.11300)

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Park map

View the park map to learn more about amenities, parking and camping details

View Park Map 
Park fees

Learn about fees and regulations for all Montana State Parks

View Fees >

Meet The Park Manager

Tim Potter

Mailing Address:

Brush Lake State Park
1 Airport Road
Glasgow, MT 59230

Phone: 406-808-7117

Brush Lake