Data / Mines / Michigan / Tilden Mine
Tilden Mine: 1,620 MSHA citations
Updated November 6, 2026. Source: US Department of Labor, Mine Safety and Health Administration (MSHA), Open Government Data Sets.
Tilden Mine is an active iron ore surface mine in Marquette County, Michigan, operated by Tilden Mining Company, LC. with 860 employees on MSHA's record (mine ID 2000422). Since January 1, 2022 MSHA inspectors issued 1,620 citations and orders there with $1,951,044 in proposed penalties, and 82 accident reports were filed there, with 78 injury or illness cases.
The request: Watch Tilden Mine (MSHA mine ID 2000422) in Marquette County, Michigan: each new citation and each accident report. $10 of work on sign-up, no card.
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- MSHA mine ID
- 2000422
- Status
- Active since November 22, 1978
- Main commodity
- Iron ore
- Mine type
- Surface
- County
- Marquette County, Michigan
- Nearest town
- Ishpeming, MI
- Operator
- Tilden Mining Company, LC.
- Parent company
- Cleveland-Cliffs Inc
- Employees
- 860
- MSHA field office
- Marquette MI Field Office
- Citations and orders since January 1, 2022
- 1,620
- Significant and substantial
- 171 (10.6%)
- Closure orders
- 5
- High negligence or reckless
- 20
- Proposed penalties
- $1,951,044
- Amount paid so far
- $1,094,894
- Inspections
- 73
- Inspector hours on site
- 4,755
- Citations per inspection
- 22.19 (all mines 2.30)
- Accident reports
- 82
- Injury and illness cases
- 78
- Fatalities
- 0
- Latest MSHA record
- October 25, 2026
- Citations issued to contractors here
- 118 ($43,561 proposed)
Citations and injury cases by year
Calendar years since 2022; 2026 runs to the date of the MSHA files.
| Year | Citations and orders | Significant and substantial | Proposed penalties | Injury and illness cases |
|---|---|---|---|---|
| 2022 | 423 | 32 | $486,686 | 18 |
| 2023 | 272 | 29 | $302,849 | 17 |
| 2024 | 465 | 52 | $460,335 | 9 |
| 2025 | 211 | 22 | $397,598 | 19 |
| 2026 | 249 | 36 | $303,576 | 15 |
Standards cited most at Tilden Mine
Sections of Title 30 of the Code of Federal Regulations named on the citations, with the part each belongs to.
| Standard | What the part covers | Citations |
|---|---|---|
| 30 CFR 56.20003 | Surface metal and nonmetal mines | 284 |
| 30 CFR 56.14112 | Surface metal and nonmetal mines | 127 |
| 30 CFR 56.14100 | Surface metal and nonmetal mines | 101 |
| 30 CFR 56.4102 | Surface metal and nonmetal mines | 72 |
| 30 CFR 56.12028 | Surface metal and nonmetal mines | 66 |
| 30 CFR 56.12004 | Surface metal and nonmetal mines | 65 |
| 30 CFR 56.4201 | Surface metal and nonmetal mines | 60 |
| 30 CFR 56.14107 | Surface metal and nonmetal mines | 44 |
| 30 CFR 56.11001 | Surface metal and nonmetal mines | 41 |
| 30 CFR 56.12032 | Surface metal and nonmetal mines | 33 |
| 30 CFR 56.4101 | Surface metal and nonmetal mines | 33 |
| 30 CFR 56.13021 | Surface metal and nonmetal mines | 31 |
| 30 CFR 56.14207 | Surface metal and nonmetal mines | 29 |
| 30 CFR 56.4601 | Surface metal and nonmetal mines | 28 |
| 30 CFR 56.11012 | Surface metal and nonmetal mines | 26 |
Injury and illness cases at Tilden Mine
Accident reports by degree of injury, as the operator reported them to MSHA.
| Degree | Cases |
|---|---|
| Permanent disability | 1 |
| Days away from work or restricted activity | 48 |
| No lost time, or an occupational illness | 29 |
What the accident reports at Tilden Mine describe
Accident classification, as MSHA codes the circumstances that contributed most directly.
| Classification | Reports |
|---|---|
| Handling of materials | 24 |
| Slip or fall of person | 16 |
| Handtools (nonpowered) | 14 |
| Machinery | 13 |
| Powered haulage | 5 |
| Other | 4 |
| Poisoning (toxic materials) | 2 |
| Entrapment | 2 |
| Fire | 1 |
| Falling/sliding/rolling materials | 1 |
Equipment named in accident reports at Tilden Mine
| Equipment | Reports |
|---|---|
| Hand tools (not powered) | 14 |
| Hand tools (powered) | 8 |
| Front-end loader | 5 |
| Road grader | 3 |
| Ore haulage trucks - off highway trucks | 2 |
| Bulldozer | 2 |
| Trucks | 1 |
| Scraper loader | 1 |
| Shovel | 1 |
| Forklift | 1 |
Other open mines in Marquette County, Michigan
| Mine | Operator | County | Main commodity | Employees | Citations since 2022 |
|---|---|---|---|---|---|
| Eagle Mine | Eagle Mine LLC | Marquette County, MI | Nickel ore | 170 | 228 |
| Humboldt Mill | Eagle Mine LLC | Marquette County, MI | Nickel ore | 103 | 77 |
| Crusher #4 | A. Lindberg & Sons, Inc. | Marquette County, MI | Construction sand and gravel | 3 | 34 |
| Smith Quarry | Smith Construction, Inc. | Marquette County, MI | Construction sand and gravel | 4 | 21 |
| Screening Plant #1 | Associated Constructors LLC | Marquette County, MI | Construction sand and gravel | 0 | 20 |
| Lindberg's County Road 480 Gravel Pit | A. Lindberg & Sons, Inc. | Marquette County, MI | Construction sand and gravel | 11 | 12 |
| Crusher #3 | A. Lindberg & Sons, Inc. | Marquette County, MI | Construction sand and gravel | 3 | 9 |
| Crushing Plant #2 | A. Lindberg & Sons, Inc. | Marquette County, MI | Construction sand and gravel | 3 | 8 |
| SP-13 | A. Lindberg & Sons, Inc. | Marquette County, MI | Iron ore | 2 | 7 |
| SP-14 | A. Lindberg & Sons, Inc. | Marquette County, MI | Construction sand and gravel | 2 | 7 |
| Track Jaw | Marquette Mineral, LLC | Marquette County, MI | Crushed, broken granite | 2 | 7 |
| A. Lindberg & Sons, Inc.- Drill Operation 1 | A. Lindberg & Sons, Inc. | Marquette County, MI | Construction sand and gravel | 2 | 4 |
| Crusher #3 | M.J. Van Damme Trucking, Inc. | Marquette County, MI | Construction sand and gravel | 4 | 3 |
| Cedarapids | Geomaterials LLC | Marquette County, MI | Construction sand and gravel | 1 | 3 |
| SP-15 | A. Lindberg & Sons, Inc. | Marquette County, MI | Construction sand and gravel | 2 | 1 |
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.