The Stewart Family would like to welcome you to Abayance Bay Marina, located 8 miles West of Eureka, MT, on HWY 37.

We offer:

• 192 boat slips

• Boat Launch with wheelchair access

• 24/7 fuel access

• On site maintenance facility

• Storage lockers

• Watercraft rentals

• Convenience store

• The Bowl

Lake Koocanusa consists of 28,723 acres with a shore length of 128.0 miles. 97% of the property adjacent to the reservoir is public land.  The average depth is 127 ft (maximum depth of 372 ft) with a peak surface temperatures average 67.1 degrees F.  

The Lake is a pristine body of water that is home to a wide range of fish, miles of beaches, and ample room for your choice of recreational water sport.