About G. Marsten Dame Marina(Northport Harbor)
G. Marsten Dame Marina, located at 105 Rose St, Northport, MI 49670, United States. Off Season: 231-386-5182 Notes of navigation: Behind breakwater, well-marked with lighted red and green buoys. Home » Attractions » G. Marsten Dame Marina The Northport Marina is a Michigan Department of Natural Resources harbor of refuge with 33 seasonal slips and 67 transient slips. Gasoline & diesel, water, restrooms & showers, holding tank pump-out, launch ramp, cable TV hook-up, public telephone. Adjacent to swimming beach, public park and long-term parking. One block from downtown shops and services. Electricity: 110V., 20, 30 & 50 amps Harbormaster on duty: 5/15 – 10/31. Credit cards and checks accepted.
Facilities
Electricity
PetrolDiesel
Water
Wifi
Showers
Toilets
Recycling
Food
Laundry
SupermarketCOORDINATES
45.12957 N, -85.61304 E
Port Information
Telephone
Berth Sizes
< 10m, 10-20m
Depth at MLW
2 - 3m
Manoeuvrability
Fair
Channel Marking
Fair
VHF Channel
71/16
Port of Entry
No
Overseas Visitor Berths
Yes
Dock Type
Fixed
Style Side To
Yes
Style Stern To
Yes
Tidal Flow
Negligible
Active Winter
No
Weather Forecast
Mon
9AM - 1PM
20 July 2026
SW 16 knots increasing to 18 knots. Gusts up to 25 knots.
23 to 27°C
SW 0.7m at 4s period
Mostly fine
Mon
1PM - 5PM
20 July 2026
- SW 13–19 knots. Gusts up to 26 knots.
- 24 to 27°C
- SW 0.7m at 4s period
UV Index: 5 - Moderate- Partly cloudy
Mon
5PM - 9PM
20 July 2026
- SW 15–20 knots. Gusts up to 31 knots.
- 22 to 27°C
- SW 0.7-1.0m at 4s period
- UV Index: 0 - Low
- Chance of showers