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Port of Ontonagon

USONG🇺🇸USA

Port Location

About Port of Ontonagon

Located on Lake Superior in Michigan's Upper Peninsula, Ontonagon is a small harbor serving regional industries. It handles bulk cargo and is accessible to vessels navigating the Great Lakes.

Current Conditions

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Vessel Limits

Channel Depth
5ft

Operations & Services

Port of Entry
Unknown
Pilotage Compulsory
No
Tug Assistance
No
Drydock
Unknown
Repair Code
C

References & Identifiers

WPI No.
5380 →

Identification

UN/LOCODE
USONG
Country
🇺🇸USA
Time Zone
UTC-5

Classification

Type
Port
Harbor Type
River natural
Shelter
Good

Region

Subdivision
US-MI
Area
Great Lakes
Sub-area
Lake Superior
Latitude
46.8745°
Longitude
-89.3265°

Nearby Vessels

Flag
Type
Name
Dist.
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Frequently Asked Questions

How do I navigate the approach to the Port of Ontonagon?+
The approach to Ontonagon is supported by 5 navigation aids within 50 nautical miles. The nearest is Ontonagon Lighthouse at 0.1 NM to the SSE. Other aids include Ontonagon County Lighthouses (0.3 NM NNW), Ontonagon Harbor West Breakwater (0.3 NM NNW), Fourteen Mile Point (10.9 NM NE), Keweenaw Waterway Upper Entrance (35.7 NM NE). Mariners should consult the relevant chart and List of Lights for full approach details.
What sea or ocean is the Port of Ontonagon on?+
The Port of Ontonagon is situated on the North Pacific Ocean in US. The area falls within the temperate maritime climate zone, which can influence port operations and seasonal shipping patterns.
How do I track vessels arriving at or departing from the Port of Ontonagon?+
You can track vessels near Ontonagon (USONG) in real time using MarineRadar. The platform displays live AIS positions of nearby ships, including vessel name, type, flag, speed, and course. Use the "Track Vessels Nearby" button on this page or search for USONG on the live map.
What are the operating hours and time zone for the Port of Ontonagon?+
The Port of Ontonagon operates in the UTC-5 time zone. Operating hours, VTS schedules, and pilot availability vary — vessel agents should confirm with the port authority in advance, especially for night arrivals or weekend operations.