Burns Harbor
Redwood Group Elevator M · Superior, Wisconsin
The Great Lakes / winter fleet
When the giants
come in from the cold.
Follow the winter fleet as freighters arrive, shipyards begin work, and ships return to the lakes in spring. Every chapter needs a date and a source.
Archive image: Mesabi Miner, Duluth, Dec. 31, 2017. Sharon Mollerus · CC BY 2.0. Photographic crop for display.
01 Explore documented harbors
Winter Harbor Map
Select a season, explore the Great Lakes, and choose a harbor.
Select a season to view documented harbor records.
12vessel records
5harbors with records
10 / 2verified / reported
Loading the harbor map…
Records and counts apply only to the selected winter. Map pins are approximate harbor references, not live positions or exact berths. Photos are archival and may show another season.
Current season status
Current Winter Arrivals
0Reported arrivals
0Spring departures
A new winter is approaching.
New arrivals appear when there is dated source evidence, not when AIS stops moving.
THE HARBOR WATCH / AIS SIGNALS
Harbor AIS — nearby vessels, NOT confirmed layups
Checking recent harbor traffic…
02 Documented layups
Harbor Roster — Every Ship
Search by ship or former name, then filter by harbor or shipyard.
Showing vessels for the selected winter.
Honorable James L. Oberstar
Fraser Shipyards · Superior, Wisconsin
Indiana Harbor
Ogdensburg Pier · Superior, Wisconsin
John J. Boland
Fraser Shipyards · Superior, Wisconsin
Lee A. Tregurtha
Fraser Shipyards · Superior, Wisconsin
Mesabi Miner
Fraser Shipyards · Superior, Wisconsin
A freighter's winter chapter
03 Ship history
Ship Stories & Library
Three vessels in the roster have illustrated, source-linked histories. Other biographies are listed below.
A SECOND LIFEFrom wartime tanker to lakerThe ship that crossed oceans in World War II—and returned for a winter at Fraser Shipyards.Meet the ship 
BIG SHIP HISTORYThe first built-on-the-Lakes thousand-footerA record-setting hull and a winter in Sturgeon Bay's graving dock.Meet the ship 
THE LAST MILESAn icebreaker and a January arrivalHow a Lake Erie ice escort became part of one freighter's winter story.Meet the ship Lee A. Tregurtha: U.S. Army Corps of Engineers, public domain. James R. Barker: Levi Gates, CC BY-SA 4.0. American Spirit: U.S. Army Corps of Engineers Detroit District / Michelle Hill, CC BY-SA 2.0.
More vessel biographies
04 Below the winter silence
Why Freighters Lay Up
Maintenance, seasonal navigation, and freight demand shape the winter break.
Why do freighters lay up?
Seasonal canal and lock schedules, ice, freight demand and maintenance planning shape the winter shutdown. No single factor explains every vessel's berth.
Inside winter shipyard work ↗Watch winter change the lakes
The NOAA ice record gives geographic context for the season, but lake-wide percentages cannot reveal the ice beside an individual shipyard dock.
Explore Great Lakes ice ↗Where are ships moving now?
Layup archives tell the historical story. For recently observed vessels, choose our separate AIS map with its own timestamps and data limits.
Open live Great Lakes ship map ↗05 Sources & Evidence
THE SOURCE NETWORK / U.S. + CANADA
Reporting network
Source reports and regional discovery leads are checked for documented winter milestones.
- Duluth Harbor CamHarbor reporting · Lake Superior · Duluth/SuperiorDated evidence eligible under source checks
- Wisconsin Marine Historical SocietyMaritime documentation · Wisconsin · Lake MichiganDated evidence eligible under source checks
- Duluth Seaway Port AuthorityPort authority · Lake Superior · Duluth/SuperiorDated evidence eligible under source checks
- Community Waterfront Heritage CentreCanadian maritime museum · Georgian Bay · Owen SoundDated evidence eligible under source checks
- Interlake SteamshipVessel operator · U.S. Great Lakes fleetDated evidence eligible under source checks
- HOPA PortsCanadian port authority · Ontario · Hamilton/OshawaDated evidence eligible under source checks
- Thunder Bay Port AuthorityCanadian port authority · Canada · Lake SuperiorDated evidence eligible under source checks
- Port of ClevelandU.S. port authority · Ohio · Lake ErieDated evidence eligible under source checks
- BoatNerd NewsMaritime reporting · All Great LakesResearch lead — editorial review
- Shipwatcher NewsShipwatcher reporting · All Great LakesResearch lead — editorial review
- Great Lakes NowRegional journalism · Great Lakes regionResearch lead — editorial review
- MarineLinkIndustry news · Maritime industryResearch lead — editorial review
- BoatNerd Port & Vessel ReportingPort and vessel reporting · All Great LakesResearch lead — editorial review
- Lake Carriers’ AssociationIndustry reporting · U.S. Great Lakes fleetResearch lead — editorial review
- Algoma Central CorporationFleet operator · Canadian Great Lakes fleetDated evidence eligible under source checks
- BoatNerd Winter Layup RosterSeasonal winter roster index · Whole Great LakesSeasonal roster lead — review only
- Regional discovery: Sarnia and St. ClairNews-search leads, never automatic verification · Sarnia / St. Clair River / DetroitRegional search lead — review only
- Regional discovery: Welland and HamiltonNews-search leads, never automatic verification · Hamilton / Port Colborne / WellandRegional search lead — review only
- Regional discovery: Owen Sound and Thunder BayNews-search leads, never automatic verification · Owen Sound / Thunder BayRegional search lead — review only
- Regional discovery: Eastern Great LakesNews-search leads, never automatic verification · Erie / Cleveland / Buffalo / EscanabaRegional search lead — review only
OFFICIAL BERTH STATUS — CANADIAN PRIMARY SOURCE
View HOPA's live Hamilton vessel-status board ↗
HOPA distinguishes layup/repairs from ordinary cargo visits. Its status board is an external reference, not yet an automatically ingested vessel record. Its entries must not be presented as our confirmed layups without verification.
What these records mean