Who's Loading at the Upper Harbor Tonight? Following the Ore Boats Through the Late Season

At 11:05 on a Wednesday night in mid-October, the John G. Munson tied up on one side of the LS&I ore dock in Marquette's Upper Harbor. The Joseph L. Block had arrived on the other side about eight hours earlier. Both were there to load iron ore pellets, and the Hon. James L. Oberstar was due the next morning. Boatnerd's Lake Superior port report for October 14 logged all of it.

Across town, the Lower Harbor ore dock has gone unused since it was decommissioned in 1971, according to Friends of Ore Dock BotEco. The dock most visitors photograph is the one that stopped working. The one off Lakeshore Boulevard, near Lakewood Lane, keeps going through the dark months, and its schedule is public. Which freighter is loading tonight is something you can look up.

A dock longer than the longest boat that ties up to it

Travel Marquette gives the Presque Isle dock's specs: built in 1912, 1,250 feet long and 60 feet wide, with a deck 75 feet above the water. Its 200 pockets hold 50,000 tons of pellets in total. The state's tourism listing calls it the only operating ore-loading facility in Marquette's harbors.

Those specs matter when you're watching from shore. The American Spirit, shown loading at night in an October 7 Mining Journal photo, is 1,004 feet long. That still leaves almost 250 feet of dock past a thousand-footer. Because the dock is so long and has berths on both faces, two boats can load at once. That's what happened on October 14.

Here is what the dock's traffic looked like over two recent weeks, based on Boatnerd's port reports:

The Block shows up twice in about two weeks. It loaded for Indiana Harbor at the end of September and was back at the dock by mid-October. The same names keep returning, so once you've watched a few boats load, you'll start recognizing them.

Where the pellets come from, and why the boats keep coming

All of that cargo starts inland. Cleveland-Cliffs says its Tilden Mine, about five miles south of Ishpeming, makes pellets at its own plant and ships them by LS&I rail to Marquette. At the harbor, trains dump pellets into the dock's pockets, and chutes then pour them into a freighter's hold.

The size of the operation shows up in the company's 2025 annual report. Tilden produced 6 million long tons of iron ore in 2025, down from 7 million in 2024. The mine was fully operational at the end of 2025. The idlings Cliffs listed were at Minorca and part of Hibbing in Minnesota, not at Tilden. One mine sending millions of tons a year through one dock is why the berths are rarely empty for long, and why loading goes on after dark.

The destinations named in the port reports, Toledo and Indiana Harbor, tell you where these boats go next. A pellet that leaves the Upper Harbor this week is on its way to a lower-lakes steel market.

Reading the dock from your phone

You don't need a scanner or a view from the bluff to know what's happening at the dock. Here's a simple routine:

1. Check the live tracker first. Boatnerd's Marquette AIS page logs inbound and outbound vessels with timestamps. On October 24 it showed the John G. Munson inbound at 6:17 p.m., with the Hon. James L. Oberstar also inbound. The data is a live snapshot that changes as boats move, so check it close to when you plan to head out.
2. Read the port report for context. Boatnerd's "Noteworthy Passages" reports for Lake Superior ports have a Marquette section with arrival and departure times, the cargo, the destination, and which boat is due next.
3. Time your trip to the dock's rhythm. A boat marked "arrived to load" in the evening is usually still at the dock the next morning. On October 14 both the Block and the Munson were expected to leave sometime Thursday. A loaded departure is often the better sight, since the boat sits low in the water as it clears the breakwall.
4. Know the address. The state's Marquette Ore Docks listing puts the Upper Harbor dock at 2939 Lake Shore Boulevard. The dock itself is a working industrial site. The public places to watch from are in the park next to it.

Presque Isle's winter rules shape your view first

The dock works on the mine's schedule, but the park next to it runs on the weather, and the park closes some viewpoints before the shipping season ends.

The City of Marquette's Presque Isle Park page places the park at the end of Lakeshore Boulevard and points out its marina, the Upper Harbor beacon and the long breakwall. The city's park brochure map marks the LS&I Ore Dock and the Lake Superior Breakwall as sites of interest.

Here's what changes in the coming weeks, according to the city:

• The seasonal loop's walking-hours schedule runs through November 30, unless snow closes the road sooner.
• Once snow starts to accumulate, the seasonal part of Peter White Drive closes to vehicles for the winter.
• The south part of Peter White Drive is plowed and stays open during winter park hours, 7 a.m. to 8 p.m.

The south end of the park, the end closest to the harbor, is the part that stays reachable all winter. Park hours set the limit on a late-night loading, though. A boat that ties up at 11 p.m., like the Munson did, is one to watch from the plowed road the next morning before it leaves.

Late-season wind brings its own caution. In a 2024 safety reminder reported by WZMQ, the city's Parks and Recreation department warned people to watch for unstable shoreline ridges and to stay away from rough water in high winds, because waves can sweep people off the rocks. The weather that brings in the most dramatic water is also the weather that makes the rocks and breakwall most dangerous.

Wind also changes what the boats do. During an April 2022 gale warning, WLUC reported six freighters waiting off Marquette. A Lake Carriers' Association representative told the station that boats taking refuge in strong winds is not uncommon. When the forecast turns rough, check the tracker for boats sitting offshore as well as the ones at the dock.

November 3: the Fitzgerald night at Ore Dock Brewing

The best shipping event on the local calendar this fall takes place downtown. The Marquette Maritime Museum's Maritime History on Tap marks the 51st anniversary of the wreck of the Edmund Fitzgerald on Tuesday, November 3, at 7 p.m. at Ore Dock Brewing Company, 114 Spring Street. Michael Waite opens the program with "Wreck of the Edmund Fitzgerald." Rebecca Economides of the National Weather Service then covers how the storm developed, and Fred Stonehouse speaks on the loss of the ship. Tickets are $5 at the door.

The event is at the brewery because the Marquette Maritime Museum and its lighthouse are closed for the 2026 season. The museum's calendar of events has the listing too. A talk on how a November storm built up on Lake Superior goes well with the forecast watching that this time of year brings.

How long the season runs

How long the boats keep coming depends on the Soo Locks. Last season, the U.S. Army Corps of Engineers set the closing for 11:59 p.m. on January 15, 2026, or earlier if commercial traffic stopped, and published that notice on January 6. The Corps announces the closing date for the 2026–27 season separately. Until that notice comes out, last January's timing is a reference point and not a promise.

That leaves several weeks of late-season loading after Presque Isle's loop closes to cars, with the American Spirit, the Block, the Munson, the Oberstar and the rest of the regular boats working a dock that has been loading ore since 1912.

If you live near the Upper Harbor and the ore dock is part of your daily view, we'd love to hear which boat you've spotted lately. Team Erin Wasik knows the north side from the shoreline, and we're glad to talk about the parts of Marquette that make living near the lake what it is. When you're ready, Start Your Search with us.