Location
Codes & time
America/Chicago
Now: UTC-5
Standard: UTC-6
DST from 08 Mar 2026 03:00 CDT; standard time from 01 Nov 2026 02:00 CST
Contacts
No contacts researched for Duluth yet. The rescue centre and VHF 16 below always apply.
Nearest rescue centre...
VHF 16distress, safety and calling (156.800 MHz)DSC 70digital selective calling
Active warnings near Duluth
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Duluth at a glance
Rank basis: Cargo throughput 27.6 million t (30.5 M short tons) (2023)
Throughput
- 27.65 million t (30.5 M short tons) (2023) source
Figures change: always confirm limits with the port authority, local notices and your agent before arrival.
Duluth port guide
Duluth-Superior at the western end of Lake Superior is the largest Great Lakes port: 30.5 million short tons in 2023 (USACE), mainly iron ore, coal and grain, reached through the St. Lawrence Seaway by ocean ships in the navigation season.
Sources
For planning reference only (researched Oct 1, 2026). Always verify against official publications - Admiralty Sailing Directions, List of Radio Signals, local notices and the port authority - and your agent before arrival.
Catalogue harbor data
- Area
- Lake Superior; Great Lakes
- Channel depth (m)
- 6.4
- Anchorage depth (m)
- 7.9
- Harbor size (World Port Index)
- Medium
- Harbor type
- Coastal (Breakwater)
- Shelter
- Excellent