Notice Not affiliated with the Master Mariners Benevolent Association (MMBA) or any successor organization. v.2026.05
General Overview
Facility 🛶 Small Dock Est. Slips ~20 Water Lake Est. Parking ~30 spaces Lot Size Medium (50–150) Lot Type Gravel Confidence High

Small marina dock on lake edge with gravel parking area amid campground-like structures and dirt roads, no vehicles present.

Aerial view of Goose Bay Marina
inland waterway

Goose Bay Marina

Broadwater County, MT

Goose Bay Marina is nestled along the shores of Canyon Ferry Lake, a large reservoir on the Missouri River in Broadwater County, Montana, offering a scenic inland waterway setting surrounded by rolling hills and forested landscapes. This marina primarily serves recreational boating activities on the lake's freshwater expanse, including sailing, fishing, and powerboating amidst the region's varied weather and natural beauty. Its location in this rural, western Montana area makes it a gateway to exploring the broader Missouri River system.

Location Broadwater County, Broadwater County, Montana
Capacity ~20 slips
Coordinates 46.5401, -111.5611

Nearby Marinas in Montana

Marina Parking & Access Control

Marinas typically need to separate slip holder parking from day-visitor parking, trailer areas, launch ramps, and secure dock access points. Modern facilities use barrier gate systems to enforce these zones automatically — allowing permitted vehicles through via transponder or keycard while logging all access events.