Mines in Cook County, Minnesota
Cook County, Minnesota has 14 mines on MSHA's register: 3 intermittent, 11 abandoned. 1 miner has died and 6 accidents have been reported at these mines between 1990 and 2020. Inspectors have issued 203 citations.
Every mine MSHA has registered in Cook County, working or not, with the accident, fatality and citation record each one carries on this site. Active mines are listed first, then the rest by the weight of their record.
- Mines on register
- 14
- Active
- 0
- Fatalities on record
- 1
- Citations issued
- 203
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County figures come from the US Census Bureau's American Community Survey, 5-year pooled estimates, so the 2023 vintage covers 2019 through 2023. The Census category is 'mining, quarrying, and oil and gas extraction', which is broader than MSHA jurisdiction and includes oil and gas workers no mine employs. These figures describe the surrounding county, not this mine, and are not a factor in any specific incident.Mines plot only where MSHA holds a surveyed coordinate for the site; mines the agency locates to a town, county or state centroid are in the counts and the list above but not drawn. Click a point for the mine's status and record.
| Operator | Mines | Active | Fatalities |
|---|---|---|---|
| Edwin E. Thoreson. Inc | 6 | 0 | 0 |
| Philip Hill Construction | 1 | 0 | 1 |
| Cook County Highway Department | 1 | 0 | 0 |
| George Humphrey Contracting | 1 | 0 | 0 |
| Isak Hansen & Sons Inc | 1 | 0 | 0 |
| John S. Mathisen | 1 | 0 | 0 |
| Mark Sand & Gravel Co. | 1 | 0 | 0 |
| Omar's Sand and Gravel, Inc | 1 | 0 | 0 |
| Ulland Brothers Inc | 1 | 0 | 0 |
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Frank Staples Gravel PitAbandoned 1 fatal 0 citationsSurface metal/non-metal · Philip Hill Construction · MSHA ID 2103012
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Plant 4Intermittent 0 fatal 77 citationsSurface metal/non-metal · Mark Sand & Gravel Co. · MSHA ID 2102641
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Screening PlantIntermittent 0 fatal 40 citationsSurface metal/non-metal · Isak Hansen & Sons Inc · MSHA ID 2103105
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Crusher #2Abandoned 0 fatal 43 citationsSurface metal/non-metal · Edwin E. Thoreson, Inc. · MSHA ID 2103169
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Wash PlantIntermittent 0 fatal 36 citationsSurface metal/non-metal · Edwin E. Thoreson, Inc. · MSHA ID 2102803
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Humphrey CrusherAbandoned 0 fatal 5 citationsSurface metal/non-metal · George Humphrey Contracting · MSHA ID 2103546
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John S. MathisenAbandoned 0 fatal 1 citationsSurface metal/non-metal · John S. Mathisen · MSHA ID 2103104
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Omar Plant 1-010Abandoned 0 fatal 1 citationsSurface metal/non-metal · Omar's Sand and Gravel, Inc · MSHA ID 2103000
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Bower-Trout Pit & MillAbandoned 0 fatal 0 citationsSurface metal/non-metal · Edwin E Thoreson Inc · MSHA ID 2102802
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COOK COUNTY HWY. DEPT.Abandoned 0 fatal 0 citationsSurface metal/non-metal · Cook County Highway Department · MSHA ID 2103118
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CRUSHER #2Abandoned 0 fatal 0 citationsSurface metal/non-metal · Edwin E Thoreson Inc · MSHA ID 2102989
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Indian PitAbandoned 0 fatal 0 citationsSurface metal/non-metal · Ulland Brothers Inc · MSHA ID 2102852
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Jaw CrusherAbandoned 0 fatal 0 citationsSurface metal/non-metal · Edwin E. Thoreson. Inc · MSHA ID 2103457
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Johnson PitAbandoned 0 fatal 0 citationsSurface metal/non-metal · Edwin E Thoreson Inc · MSHA ID 2100509
Status, type and operator are as reported to MSHA. Fatality and accident counts are MSHA's reportable accident records for the mine; citations are inspector-issued violations on record. Each mine's own page carries the full detail.
The register is MSHA's Mine Data Retrieval System: every operation ever assigned a mine ID, including ones abandoned decades ago, so the count is a history of mining in the county, not a count of working mines. A mine's county is the one its operator reported to MSHA. Fatality and accident counts start with MSHA's reportable-accident records (1983 onward); citation counts are inspector-issued violations on record. We are an independent research tool, not MSHA.