Acquiring satellite view…
Big Bay Harbor of Refuge
VerifiedLocation
GPS Coordinates
Get Directions
About This Ramp
Hours
4:00am-11:00pm
Managed by
Co
Lanes
2
Docks
1
Parking
10 spaces
Amenities
Restroom
Contact
USGS3 data sourcesUpdated Mar 2026
Big Bay Harbor of Refuge is a public boat ramp on Lake Superior in Big Bay, Marquette County, Michigan (49808). Managed by Co. GPS coordinates: 46.8262°N, 87.7277°W.