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
Wed
5AM - 9AM
18 February 2026
E 23–26 knots.
1°C
Rain
Wed
9AM - 1PM
18 February 2026
- E 23 knots decreasing to 19 knots. Gusts up to 36 knots.
- 0 to 2°C
E 1.4m at 4s period
UV Index: 0 - Low- Rain
Wed
1PM - 5PM
18 February 2026
- E 15–22 knots. Gusts up to 32 knots.
- 1°C
- E 1.0-1.3m at 4s period
- UV Index: 0 - Low
- Chance of showers