Data / Mines / Minnesota / Metal mines

Metal ore mines in Minnesota: 12 open mines

Updated November 6, 2026. Source: US Department of Labor, Mine Safety and Health Administration (MSHA), Open Government Data Sets.

MSHA lists 12 open metal ore mines in Minnesota, run by 8 operators and employing 3,193 people. Since January 1, 2022 its inspectors issued 4,637 citations and orders there with $7,911,103 in proposed penalties, and operators reported 378 injury or illness cases. The operators with the most open mines are United States Steel Corp-Minnesota Ore Operations; United Taconite LLC; Northshore Mining Company. Data from MSHA, November 6, 2026.

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Open mines

12

Operators

8

Employees

3,193

Active

11

Temporarily Idled

1

Citations and orders since January 1, 2022

4,637

Significant and substantial

687 (14.8%)

Closure orders

20

High negligence or reckless

58

Proposed penalties

$7,911,103

Amount paid so far

$6,137,197

Inspections

436

Inspector hours on site

14,658

Citations per inspection

10.64 (all mines 2.30)

Accident reports

403

Injury and illness cases

378

Fatalities

0

Latest MSHA record

November 4, 2026

Operators with the most open mines in Minnesota

Ranked by open mines, then by citations. Sole proprietors and individuals are not listed.

Operators with the most citations in Minnesota

Citations and orders issued since January 1, 2022 at their open mines here.

Mines with the most citations

Open mines, ranked by citations and orders since January 1, 2022.

Main commodities

Citations and injury cases by year

Calendar years since 2022; 2026 runs to the date of the MSHA files.

Standards cited most at metal ore mines in Minnesota

Sections of Title 30 of the Code of Federal Regulations named on the citations, with the part each belongs to.

Injury and illness cases at metal ore mines in Minnesota

Accident reports by degree of injury, as the operator reported them to MSHA.

What the accident reports at metal ore mines in Minnesota describe

Accident classification, as MSHA codes the circumstances that contributed most directly.

Equipment named in accident reports at metal ore mines in Minnesota

US government work, public domain. Counts come from the MSHA files published on November 6, 2026. An open mine is one MSHA lists as Active, Intermittent, New Mine, Temporarily Idled or NonProducing; 13,673 were open that day. Citations, penalties, inspections and accident reports run from January 1, 2022. A citation is an inspector's allegation and an operator can contest it; the penalty is the amount MSHA first proposed, before any contest or settlement. An operator is the legal entity MSHA assesses, and a parent company is its controller. Mines run by sole proprietors or by individuals are counted in every total and are not named. This page uses MSHA data and is not endorsed or certified by MSHA. Free to reuse with credit to SpecStream under CC BY 4.0. Spot a wrong value? Write to [email protected] with the link to this page.