Data / Mines / Minnesota / Stone mines
Stone mines in Minnesota: 55 open mines and MSHA citations
MSHA lists 55 open stone mines in Minnesota, run by 41 operators and employing 378 people. Since January 1, 2022 its inspectors issued 509 citations and orders there with $107,849 in proposed penalties, and operators reported 49 injury or illness cases. The operators with the most open mines are Cold Spring Granite Company; Martin Marietta Materials, Inc.; Bryan Rock Products Inc. Data from MSHA, November 6, 2026.
SpecStream is the live web data engine for teams and agents. It reads the mine, citation, inspection and accident files that MSHA publishes, and this page is that reading. Ask for the mines of a commodity, state or operator with the operator's headquarters, website and size added from the web, and new mines, new citations and new accident reports arrive in your sheet, CRM, Slack or agent as MSHA posts them.
- Open mines
- 55
- Operators
- 41
- Employees
- 378
- Intermittent
- 38
- Active
- 16
- Temporarily Idled
- 1
- Mines run by individuals, counted and not listed
- 2
- Citations and orders since January 1, 2022
- 509
- Significant and substantial
- 65 (12.8%)
- Closure orders
- 9
- High negligence or reckless
- 49
- Proposed penalties
- $107,849
- Amount paid so far
- $102,070
- Inspections
- 411
- Inspector hours on site
- 2,776
- Citations per inspection
- 1.24 (all mines 2.30)
- Accident reports
- 52
- Injury and illness cases
- 49
- 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.
| Mine | Operator | County | Main commodity | Employees | Citations since 2022 |
|---|---|---|---|---|---|
| K3 | Kasota Stone Fabricators Inc | Blue Earth County, MN | Dimension stone | 6 | 46 |
| Ottawa Plant | Covia Solutions LLC | Le Sueur County, MN | Crushed, broken sandstone | 33 | 37 |
| Kielmeyer Goodhue County Limestone | Kielmeyer Construction Inc | Rice County, MN | Crushed, broken limestone | 3 | 30 |
| L-231 | Kasota Stone Fabricators Inc | Lake County, MN | Dimension granite | 4 | 27 |
| Hoogland Quarry | Hardrock Aggregate | Rock County, MN | Crushed, broken quartzite | 2 | 27 |
| Amrize Larson Plant | Amrize Mid-America Inc. | Washington County, MN | Crushed, broken limestone | 16 | 24 |
| Stussy Construction-Portable Crusher #1 | Stussy Construction Inc | Olmsted County, MN | Crushed, broken limestone | 2 | 21 |
| Roberson | Roberson Lime & Rock, Inc. | Wabasha County, MN | Crushed, broken limestone | 2 | 18 |
| Winona Quarry | Biesanz Stone | Winona County, MN | Dimension limestone | 5 | 14 |
| Wash Plant #2(Randolph) | County Line Aggregate Inc | Dakota County, MN | Crushed, broken limestone | 2 | 13 |
| PBP-1 | Pine Bend Paving, Inc. | Dakota County, MN | Crushed, broken limestone | 2 | 13 |
| Savage Plant | Carmeuse Lime Inc | Scott County, MN | Crushed, broken limestone | 25 | 12 |
| Screening Plant | Kruckow Rock & Ready Mix | Houston County, MN | Crushed, broken limestone | 2 | 12 |
| Tvedt Crusher-Primary | Olmsted Aggregate, Inc. | Olmsted County, MN | Crushed, broken limestone | 6 | 11 |
| Hastings Quarry | Solberg Aggregate Inc. | Dakota County, MN | Crushed, broken limestone | 3 | 11 |
| Jasper | L G Everist Inc | Rock County, MN | Dimension stone | 7 | 10 |
| Plant 2 | Holtmeier Construction Inc | Blue Earth County, MN | Crushed, broken limestone | 2 | 10 |
| New Ulm Quarry | Martin Marietta Materials, Inc. | Nicollet County, MN | Crushed, broken quartzite | 17 | 8 |
| Portable Crusher | Botcher Construction Company | Houston County, MN | Crushed, broken limestone | 2 | 8 |
| KMM Burnsville Quarry | Kraemer Mining & Materials, Inc. | Dakota County, MN | Crushed, broken limestone | 34 | 7 |
| Yellow Medicine Quarry | Martin Marietta Materials, Inc. | Yellow Medicine County, MN | Crushed, broken granite | 17 | 7 |
| Plant #64 | River City Stone Division Of Mathy Construction Co | Wabasha County, MN | Crushed, broken limestone | 3 | 7 |
| Hack 1 | Heintz Excavating LLC | Winona County, MN | Lime | 3 | 7 |
| Cedar Rapids Crusher | R&e Enterprises of Mankato, Inc. | Blue Earth County, MN | Crushed, broken stone | 2 | 7 |
| Abnet Quarry | La Crescent Rock Products Inc | Houston County, MN | Crushed, broken limestone | 1 | 7 |
| Stripping Crew | J. R. Ferche Inc. | Benton County, MN | Crushed, broken stone | 1 | 7 |
| Rdo Screener | R&e Enterprises of Mankato, Inc. | Blue Earth County, MN | Crushed, broken limestone | 1 | 7 |
| Charcoal #3 Quarry | Cold Spring Granite Company | Stearns County, MN | Dimension granite | 10 | 6 |
| Fogt Pit | North Pine Aggregate Inc. | Pine County, MN | Crushed, broken basalt | 2 | 6 |
| Vetter Mine | Vetter Stone Company | Blue Earth County, MN | Dimension limestone | 43 | 5 |
| Rockville #2 Quarry | Cold Spring Granite Company | Stearns County, MN | Dimension granite | 9 | 5 |
| Mesabi Black | Cold Spring Granite Company | Lake County, MN | Dimension granite | 6 | 5 |
| Luhman's Construction Co of Red Wing | Luhmans Construction Company | Goodhue County, MN | Crushed, broken limestone | 2 | 5 |
| Ortonville Quarry | L G Everist Inc | Big Stone County, MN | Crushed, broken granite | 10 | 4 |
| Portable Plant 3 | Bryan Rock Products Inc | Washington County, MN | Crushed, broken limestone | 6 | 4 |
| Power Screen | Davidson Construction Inc. | Lake Of The Woods County, MN | Crushed, broken granite | 4 | 4 |
| Iridian Quarry | Cold Spring Granite Company | Mille Lacs County, MN | Dimension granite | 6 | 3 |
| Portable Plant 2 | Bryan Rock Products Inc | Scott County, MN | Crushed, broken limestone | 5 | 3 |
| Scalping Screen | LaValla Sand and Gravel | Lake Of The Woods County, MN | Crushed, broken granite | 2 | 3 |
| Farmers Top Soil | Farmers Topsoil, Inc. | Olmsted County, MN | Crushed, broken stone | 2 | 3 |
| Plant #37 | River City Stone Division Of Mathy Construction Co | Olmsted County, MN | Crushed, broken limestone | 1 | 3 |
| St. Cloud Quarry | Martin Marietta Materials, Inc. | Stearns County, MN | Crushed, broken granite | 35 | 2 |
| Warroad Plant | Strata Corp | Lake Of The Woods County, MN | Crushed, broken stone | 5 | 2 |
| Portable Plant 1 | Bryan Rock Products Inc | Scott County, MN | Crushed, broken limestone | 2 | 2 |
| Portable Screener #1 | Dakota Aggregates LLC | Dakota County, MN | Crushed, broken stone | 2 | 2 |
| NLC #8 | New Look Contracting | Hennepin County, MN | Crushed, broken stone | 3 | 1 |
| Koch Inc No 1 | Koch Inc | Mower County, MN | Crushed, broken limestone | 2 | 1 |
| Plant 14 | Mark Sand & Gravel Company | Koochiching County, MN | Crushed, broken stone | 2 | 1 |
| NLC # 7 | New Look Contracting | Dakota County, MN | Crushed, broken stone | 8 | 0 |
| Bellingham Quarry | Dakota Stone, Inc | Lac Qui Parle County, MN | Dimension granite | 2 | 0 |
| MN Portable #10 | Martin Marietta Materials, Inc. | Blue Earth County, MN | Crushed, broken limestone | 2 | 0 |
| Crushing Plant | Brannt Valley Excavating | Olmsted County, MN | Crushed, broken limestone | 1 | 0 |
| Orr Quarry | Cold Spring Granite Company | St Louis County, MN | Dimension stone | 0 | 0 |
Main commodities
| Main commodity | Open mines | Share |
|---|---|---|
| Crushed, broken limestone | 26 | 47.3% |
| Crushed, broken stone | 8 | 14.5% |
| Dimension granite | 6 | 10.9% |
| Crushed, broken granite | 5 | 9.1% |
| Dimension stone | 3 | 5.5% |
| Dimension limestone | 2 | 3.6% |
| Crushed, broken quartzite | 2 | 3.6% |
| Crushed, broken sandstone | 1 | 1.8% |
| Lime | 1 | 1.8% |
| Crushed, broken basalt | 1 | 1.8% |
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 | 107 | 11 | $20,208 | 11 |
| 2023 | 85 | 8 | $20,826 | 4 |
| 2024 | 100 | 22 | $22,738 | 13 |
| 2025 | 110 | 11 | $25,552 | 12 |
| 2026 | 107 | 13 | $18,525 | 9 |
Standards cited most at stone mines in Minnesota
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 56.14132 | Surface metal and nonmetal mines | 48 |
| 30 CFR 56.12004 | Surface metal and nonmetal mines | 47 |
| 30 CFR 56.14107 | Surface metal and nonmetal mines | 33 |
| 30 CFR 50.30 | Reporting of accidents, injuries and illnesses | 31 |
| 30 CFR 56.4201 | Surface metal and nonmetal mines | 25 |
| 30 CFR 56.14100 | Surface metal and nonmetal mines | 24 |
| 30 CFR 56.14112 | Surface metal and nonmetal mines | 22 |
| 30 CFR 56.14101 | Surface metal and nonmetal mines | 15 |
| 30 CFR 56.4101 | Surface metal and nonmetal mines | 13 |
| 30 CFR 56.12028 | Surface metal and nonmetal mines | 12 |
| 30 CFR 56.11001 | Surface metal and nonmetal mines | 10 |
| 30 CFR 56.12032 | Surface metal and nonmetal mines | 10 |
| 30 CFR 47.41 | Hazard communication | 10 |
| 30 CFR 56.20003 | Surface metal and nonmetal mines | 9 |
| 30 CFR 56.9300 | Surface metal and nonmetal mines | 9 |
Injury and illness cases at stone mines in Minnesota
Accident reports by degree of injury, as the operator reported them to MSHA.
| Degree | Cases |
|---|---|
| Days away from work or restricted activity | 36 |
| No lost time, or an occupational illness | 13 |
What the accident reports at stone mines in Minnesota describe
Accident classification, as MSHA codes the circumstances that contributed most directly.
| Classification | Reports |
|---|---|
| Handling of materials | 20 |
| Slip or fall of person | 10 |
| Machinery | 6 |
| Other | 5 |
| Handtools (nonpowered) | 3 |
| Stepping or kneeling on object | 2 |
| Striking or bumping | 2 |
| Electrical | 1 |
| Fire | 1 |
| Disorders (repeated trauma) | 1 |
Equipment named in accident reports at stone mines in Minnesota
| Equipment | Reports |
|---|---|
| Hand tools (not powered) | 3 |
| Screen | 2 |
| Hand tools (powered) | 2 |
| Welding machine | 2 |
| Ore haulage trucks - off highway trucks | 2 |
| Dimension stone machinery | 1 |
| Shovel | 1 |
| Pneumatic blasting agent loader | 1 |
| Carriage-mounted drills | 1 |
| Front-end loader | 1 |
Updated November 6, 2026. Read from US Department of Labor, Mine Safety and Health Administration (MSHA), Open Government Data Sets. 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.