Data / Mines / Colorado Lien Company
Colorado Lien Company: 8 open mines, 251 MSHA citations
Updated November 6, 2026. Source: US Department of Labor, Mine Safety and Health Administration (MSHA), Open Government Data Sets.
Colorado Lien Company (MSHA operator ID L00438) operates 8 open mines with 210 employees in South Dakota, Wyoming, Colorado, mostly construction sand and gravel. Since January 1, 2022 MSHA inspectors issued it 251 citations and orders with $113,594 in proposed penalties, and it reported 40 injury or illness cases. Data from MSHA, November 6, 2026.
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- MSHA operator ID
- L00438
- Open mines
- 8
- Employees at open mines
- 210
- States
- South Dakota, Wyoming, Colorado
- Parent company
- Pete Lien & Sons Inc
- Citations and orders since January 1, 2022
- 251
- Significant and substantial
- 47 (18.7%)
- Closure orders
- 4
- High negligence or reckless
- 17
- Proposed penalties
- $113,594
- Amount paid so far
- $113,292
- Inspections
- 88
- Inspector hours on site
- 1,487
- Citations per inspection
- 2.85 (all mines 2.30)
- Accident reports
- 40
- Injury and illness cases
- 40
- Fatalities
- 0
- Latest MSHA record
- September 29, 2026
Open mines of Colorado Lien Company
Ranked by citations since January 1, 2022.
| Mine | Operator | County | Main commodity | Employees | Citations since 2022 |
|---|---|---|---|---|---|
| Rapid City Quarry & Mill | Colorado Lien Company | Pennington County, SD | Lime | 109 | 149 |
| Owl Canyon Quarry & Mill | Colorado Lien Company | Larimer County, CO | Dimension limestone | 25 | 54 |
| Wyoming Lime Products | Colorado Lien Company | Park County, WY | Lime | 15 | 26 |
| Jonathon Quarry | Colorado Lien Company | Albany County, WY | Crushed, broken limestone | 43 | 11 |
| Oral Sand Plant | Colorado Lien Company | Fall River County, SD | Construction sand and gravel | 8 | 4 |
| CF & I Pit | Colorado Lien Company | Pennington County, SD | Iron ore | 5 | 3 |
| Chuck Quarry | Colorado Lien Company | Meade County, SD | Construction sand and gravel | 1 | 1 |
| Creston Sand Plant | Colorado Lien Company | Pennington County, SD | Construction sand and gravel | 4 | 0 |
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 | 32 | 8 | $8,595 | 9 |
| 2023 | 73 | 11 | $24,106 | 11 |
| 2024 | 56 | 13 | $35,728 | 10 |
| 2025 | 62 | 14 | $35,409 | 6 |
| 2026 | 28 | 1 | $9,756 | 4 |
Standards cited most at Colorado Lien Company
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 | 26 |
| 30 CFR 56.14107 | Surface metal and nonmetal mines | 21 |
| 30 CFR 56.14112 | Surface metal and nonmetal mines | 15 |
| 30 CFR 56.11001 | Surface metal and nonmetal mines | 15 |
| 30 CFR 56.14100 | Surface metal and nonmetal mines | 11 |
| 30 CFR 56.14101 | Surface metal and nonmetal mines | 10 |
| 30 CFR 56.12004 | Surface metal and nonmetal mines | 9 |
| 30 CFR 56.4201 | Surface metal and nonmetal mines | 8 |
| 30 CFR 56.12028 | Surface metal and nonmetal mines | 8 |
| 30 CFR 56.4101 | Surface metal and nonmetal mines | 7 |
| 30 CFR 56.14207 | Surface metal and nonmetal mines | 6 |
| 30 CFR 47.41 | Hazard communication | 5 |
| 30 CFR 56.4130 | Surface metal and nonmetal mines | 5 |
| 30 CFR 56.4104 | Surface metal and nonmetal mines | 5 |
| 30 CFR 46.9 | Training at sand, gravel and surface stone mines | 5 |
Injury and illness cases at Colorado Lien Company
Accident reports by degree of injury, as the operator reported them to MSHA.
| Degree | Cases |
|---|---|
| Days away from work or restricted activity | 27 |
| No lost time, or an occupational illness | 13 |
What the accident reports at Colorado Lien Company describe
Accident classification, as MSHA codes the circumstances that contributed most directly.
| Classification | Reports |
|---|---|
| Handling of materials | 14 |
| Slip or fall of person | 7 |
| Powered haulage | 5 |
| Disorders (repeated trauma) | 4 |
| Handtools (nonpowered) | 3 |
| Machinery | 2 |
| Stepping or kneeling on object | 2 |
| Other | 2 |
| Exploding vessels under pressure | 1 |
Equipment named in accident reports at Colorado Lien Company
| Equipment | Reports |
|---|---|
| Front-end loader | 5 |
| Hand tools (not powered) | 3 |
| Ore haulage trucks - on highway trucks | 2 |
| Hand tools (powered) | 1 |
| Tugger | 1 |
| Forklift | 1 |
| Conveyor | 1 |
| Classifier | 1 |
| Crusher | 1 |
Commodities
| Main commodity | Open mines |
|---|---|
| Construction sand and gravel | 3 |
| Lime | 2 |
| Dimension limestone | 1 |
| Iron ore | 1 |
| Crushed, broken limestone | 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.