St. Louis County
Both halves of one operation, in one town
Mountain Iron is in St. Louis County, and it is one of the few places on the range where the mine and the processing plant sit in the same municipality. The Minntac Mine and the Minntac Plant are both carried here, under United States Steel’s ore operations.
The two carry very different headcounts in the mine regulator’s file — 430 employees against 790 — and that split is a reporting artefact rather than two businesses. One operation is registered under two identifiers, and reading either number alone would describe the site wrongly.
Elsewhere on the range the same complex is split across towns instead. Northshore’s mine and plant are 47 miles apart; another operator’s are in two different places again. Here they are not, which is why the local traffic is concentrated rather than strung out along a highway.
The trucks here do not haul the product
That concentration matters because of what leaves and how. Pellets go out by rail to the Lake Superior docks and then by ship, so on this range the trucks are not how the product moves at all.
So the road freight is entirely inbound and support: grinding media by the tonne, bentonite binder, limestone flux, fuel, off-highway tyres, reagents, and heavy contractor fleets whenever a line comes down for a shutdown or a rebuild. A rebuild brings a great deal of iron in on trailers. The rail row in town is operated by Canadian National and sits 3.08 miles from the centroid.
A page about trucks on the Mesabi Range is therefore a page about supplying a mine, not about hauling ore. The largest machines here never touch a public road and are not what this is about.
Magnetite, chloride, and what to look under
Those inbound loads come off onto ground covered in the dust of what is being processed. Taconite is a low-grade magnetic rock — crushed, ground, magnetically separated and rolled into pellets — and the dust that comes off it is fine, heavy and magnetic.
It clings to everything ferrous and does not blow off the way limestone dust does. It packs into brake assemblies, frame members and any bearing that is not fully sealed, and the honest question about a range truck is whether it has been cleaned out of the brakes or merely painted over.
Then there is the winter. Chloride works up from below and behind onto brake lines, air lines, electrical connectors and frame crossmembers, and freeze-thaw cycling works every joint, seal and weld on a chassis that is cold-soaked overnight and worked hard by day. At 42 people per square mile there is not much shelter to park under. A Minntac Plant truck and a Gulf Coast tanker are both badly corroded and not in the same way — chloride from below and behind, against salt air from all sides.
Minnesota weight law
A calendar, not a cargo list
That winter is also what governs the load. Minnesota keys its seasonal weight rule to temperature rather than to what is on the trailer: under Minn. Stat. § 169.826 legal weights rise by up to 10 percent once the ground is deeply frozen and winter load limits have been authorised, on adequate axle spacing and tyre ratings, and the increase is commodity-neutral.
Spring takes it back and then some. Gravel-surfaced roads are cut to 5 tons per axle and bituminous roads are posted at 5, 7, 9 or 10 tons per axle by surface, with no overweight permits issued at all while the restrictions run. MnDOT publishes six frost zones on their own dates, so an operator here plans against a calendar rather than against a cargo.
The general ceiling under § 169.824 is 80,000 lb gross on all streets and highways, expressly subject to a lower axle weight posted under § 169.87. Minnesota posts by axle tonnage rather than by gross, so on the roads that reach these gates the sign is usually what binds.
Minn. Stat. § 169.824 and § 169.826 on weight, with posting under § 169.87. MnDOT publishes six frost zones. Information, not legal advice.
Minnesota paperwork
We need a title — unless it never had one
Beyond the weight rules, that is the whole of it in one sentence. Everything after it is a fix rather than a category. If the title is lost, there is a counter replacement. If the truck never had one, there is a bonded route. Both are ordinary and neither stops a sale.
One Minnesota rule is worth knowing because it names this kind of truck outright. Minn. Stat. § 168A.01 defines a high-value vehicle as one whose actual cash value was in excess of $9,000 before it was damaged, or one with a manufacturer’s rating over 26,000 pounds gross vehicle weight that is not a late-model vehicle. That second limb is the commercial driving licence threshold, and every truck this site buys is over it — so being an old heavy truck is precisely what keeps a vehicle inside rules that age alone would release it from.
The damage threshold runs the other way. Under § 168A.151 a vehicle is salvage when repair cost exceeds 80 percent of its value immediately before the damage, or when an insurer declares or pays a total loss. Minnesota also brands prior salvage where a title carried a salvage term anywhere, at any time, in any other state — a brand cleared elsewhere does not clear here.
Minn. Stat. § 168A.01 and § 168A.151, Minnesota Revisor of Statutes. Information, not legal advice.
What we buy here
Both the supply fleet and the contractor fleet come to us. Bulk trailers for bentonite and limestone first, because that is the steady inbound work. Fuel tankers. Flatbeds and lowboys for maintenance and equipment. Day cabs and road tractors, dump trucks, service bodies, and the pickups and work trucks the crews live out of.
Most of it works between the Minntac Plant gate and the Canadian National yard 3.08 miles away.
Whatever you drive, the offer doesn’t change. We buy all of them.
We buy complete trucks. If the engine, transmission, doors, rear ends, drive shafts, wheels or anything under the hood have been removed, we can’t buy it. Small things — a missing bumper — are fine.
Straight answers
The questions we get asked in Mountain Iron
- Does it have to run?No. It does have to be complete — if the engine, transmission, doors, rear ends, drive shafts, wheels or anything under the hood have been removed, we can’t buy it. A missing mirror is nothing.
- Did it work inside the fence or on the road?Worth telling us, because on the Mesabi Range those are two different worlds. The off-highway machines never touch a public road; the highway fleet is what we buy.
- Will you come up to the range for it?Yes. We come to you and drive it away, we come to you and tow it, we buy it remotely and arrange the tow, or you drive it to us. St. Louis County is a run we make.
- No title — it never had one. Now what?That happens with older equipment and it isn’t fatal. We need a title unless the truck is old enough that it never had one, and where none exists there’s a bonded route.
- The brakes are full of black dust. Does that matter?Tell us about it rather than hiding it. Magnetite packs in and does not blow out, and we would far rather hear that it has been cleaned than find out it was painted over.
Why people call
Beyond the mine gates, the reasons are the ordinary ones. A back that won’t take another winter. A contract that ended when a line came down. A father’s truck that nobody in the family drives and nobody wants to scrap.
There is a genuine local market for used heavy equipment along this range — roughly 3,137 jobs across the operating rows, a century of continuity behind them — so a seller in this St. Louis County town of 2,860 residents is not looking at a two-day drive to reach anybody.
Most of those aren’t happy reasons, and we don’t treat them like they are. Somebody wants a straight answer and the truck gone by the end of the week. That’s what we’re here for.