Data / Mines / Minnesota / Iridian Quarry
Iridian Quarry: 3 MSHA citations
Updated November 6, 2026. Source: US Department of Labor, Mine Safety and Health Administration (MSHA), Open Government Data Sets.
Iridian Quarry is an intermittent dimension granite surface mine in Mille Lacs County, Minnesota, operated by Cold Spring Granite Company with 6 employees on MSHA's record (mine ID 2100752). Since January 1, 2022 MSHA inspectors issued 3 citations and orders there with $495 in proposed penalties, and 1 accident report was filed there, with 1 injury or illness case.
The request: Watch Iridian Quarry (MSHA mine ID 2100752) in Mille Lacs County, Minnesota: each new citation and each accident report. $10 of work on sign-up, no card.
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- MSHA mine ID
- 2100752
- Status
- Intermittent since April 20, 2017
- Main commodity
- Dimension granite
- Mine type
- Surface
- County
- Mille Lacs County, Minnesota
- Nearest town
- Isle
- Operator
- Cold Spring Granite Company
- Employees
- 6
- MSHA field office
- Duluth MN Field Office
- Citations and orders since January 1, 2022
- 3
- Significant and substantial
- 1 (33.3%)
- Closure orders
- 0
- High negligence or reckless
- 0
- Proposed penalties
- $495
- Amount paid so far
- $495
- Inspections
- 5
- Inspector hours on site
- 37
- Citations per inspection
- 0.60 (all mines 2.30)
- Accident reports
- 1
- Injury and illness cases
- 1
- Fatalities
- 0
- Latest MSHA record
- January 6, 2026
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 | 0 | 0 | $0 | 1 |
| 2026 | 3 | 1 | $495 | 0 |
Standards cited most at Iridian Quarry
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 56.11003 | Surface metal and nonmetal mines | 1 |
| 30 CFR 56.11002 | Surface metal and nonmetal mines | 1 |
| 30 CFR 56.14100 | Surface metal and nonmetal mines | 1 |
Injury and illness cases at Iridian Quarry
Accident reports by degree of injury, as the operator reported them to MSHA.
| Degree | Cases |
|---|---|
| Days away from work or restricted activity | 1 |
What the accident reports at Iridian Quarry describe
Accident classification, as MSHA codes the circumstances that contributed most directly.
| Classification | Reports |
|---|---|
| Handling of materials | 1 |
Other open mines in Mille Lacs County, Minnesota
| Mine | Operator | County | Main commodity | Employees | Citations since 2022 |
|---|---|---|---|---|---|
| MN Portable Wash 086 (a5567 Wash Plant) | Cemstone Products Company | Mille Lacs County, MN | Construction sand and gravel | 3 | 4 |
| Milaca Pit | Kapsner Excavating LLC | Mille Lacs County, MN | Construction sand and gravel | 2 | 4 |
| MN Portable #6 | Barton Sand & Gravel | Mille Lacs County, MN | Construction sand and gravel | 6 | 1 |
| MN Portable Crusher 083 (a5753 Cone) | Cemstone Products Company | Mille Lacs County, MN | Construction sand and gravel | 2 | 1 |
| Mille Lacs Quarry | Kraemer Mining & Materials, Inc. | Mille Lacs County, MN | Construction sand and gravel | 2 | 0 |
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.