Data / Mines / Colorado / Owl Canyon Quarry & Mill
Owl Canyon Quarry & Mill: 54 MSHA citations
Updated November 6, 2026. Source: US Department of Labor, Mine Safety and Health Administration (MSHA), Open Government Data Sets.
Owl Canyon Quarry & Mill is an active dimension limestone surface mine in Larimer County, Colorado, operated by Colorado Lien Company with 25 employees on MSHA's record (mine ID 0503222). Since January 1, 2022 MSHA inspectors issued 54 citations and orders there with $16,038 in proposed penalties, and 7 accident reports were filed there, with 7 injury or illness cases.
The request: Watch Owl Canyon Quarry & Mill (MSHA mine ID 0503222) in Larimer County, Colorado: each new citation and each accident report. $10 of work on sign-up, no card.
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- MSHA mine ID
- 0503222
- Status
- Active since October 18, 1988
- Main commodity
- Dimension limestone
- Mine type
- Surface
- County
- Larimer County, Colorado
- Nearest town
- Livermore
- Operator
- Colorado Lien Company
- Parent company
- Pete Lien & Sons Inc
- Employees
- 25
- MSHA field office
- Denver CO Field Office
- Citations and orders since January 1, 2022
- 54
- Significant and substantial
- 7 (13.0%)
- Closure orders
- 0
- High negligence or reckless
- 4
- Proposed penalties
- $16,038
- Amount paid so far
- $16,038
- Inspections
- 10
- Inspector hours on site
- 224
- Citations per inspection
- 5.40 (all mines 2.30)
- Accident reports
- 7
- Injury and illness cases
- 7
- Fatalities
- 0
- Latest MSHA record
- April 15, 2026
- Citations issued to contractors here
- 4 ($2,697 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 | 3 | 0 | $587 | 2 |
| 2023 | 29 | 4 | $7,907 | 2 |
| 2024 | 3 | 0 | $794 | 1 |
| 2025 | 15 | 3 | $5,365 | 2 |
| 2026 | 4 | 0 | $1,385 | 0 |
Standards cited most at Owl Canyon Quarry & Mill
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 56.14107 | Surface metal and nonmetal mines | 11 |
| 30 CFR 56.20003 | Surface metal and nonmetal mines | 7 |
| 30 CFR 56.14112 | Surface metal and nonmetal mines | 5 |
| 30 CFR 56.4201 | Surface metal and nonmetal mines | 4 |
| 30 CFR 56.11016 | Surface metal and nonmetal mines | 2 |
| 30 CFR 47.41 | Hazard communication | 2 |
| 30 CFR 56.14206 | Surface metal and nonmetal mines | 2 |
| 30 CFR 56.4130 | Surface metal and nonmetal mines | 2 |
| 30 CFR 56.12002 | Surface metal and nonmetal mines | 1 |
| 30 CFR 56.14100 | Surface metal and nonmetal mines | 1 |
| 30 CFR 56.14207 | Surface metal and nonmetal mines | 1 |
| 30 CFR 46.3 | Training at sand, gravel and surface stone mines | 1 |
| 30 CFR 56.12004 | Surface metal and nonmetal mines | 1 |
| 30 CFR 56.11001 | Surface metal and nonmetal mines | 1 |
| 30 CFR 56.14110 | Surface metal and nonmetal mines | 1 |
Injury and illness cases at Owl Canyon Quarry & Mill
Accident reports by degree of injury, as the operator reported them to MSHA.
| Degree | Cases |
|---|---|
| Days away from work or restricted activity | 4 |
| No lost time, or an occupational illness | 3 |
What the accident reports at Owl Canyon Quarry & Mill describe
Accident classification, as MSHA codes the circumstances that contributed most directly.
| Classification | Reports |
|---|---|
| Disorders (repeated trauma) | 2 |
| Other | 1 |
| Powered haulage | 1 |
| Handtools (nonpowered) | 1 |
| Slip or fall of person | 1 |
| Handling of materials | 1 |
Equipment named in accident reports at Owl Canyon Quarry & Mill
| Equipment | Reports |
|---|---|
| Ore haulage trucks - on highway trucks | 2 |
| Hand tools (not powered) | 1 |
Other open mines in Larimer County, Colorado
| Mine | Operator | County | Main commodity | Employees | Citations since 2022 |
|---|---|---|---|---|---|
| Stone Wholesale Brownstone Quarry | Stone Wholesale, Inc. | Larimer County, CO | Dimension stone | 12 | 45 |
| Trupp Loveland | Arkins Park Stone Corp | Larimer County, CO | Dimension sandstone | 24 | 41 |
| Loveland Ready-Mix Concrete Inc Sand and | Loveland Ready Mix Concrete Inc | Larimer County, CO | Construction sand and gravel | 2 | 31 |
| Rocky Road Quarry | Colorado Flagstone Inc | Larimer County, CO | Dimension sandstone | 7 | 30 |
| Sprague Stone LLC | Sprague Stone LLC | Larimer County, CO | Dimension sandstone | 11 | 20 |
| Meadow Hollow Quarry | Colorado Quarry 1, LLC | Larimer County, CO | Dimension stone | 8 | 19 |
| Masonville Quarry | Masonville Stone Company | Larimer County, CO | Dimension stone | 3 | 16 |
| Coulson Portable | Coulson Excavating Company Inc | Larimer County, CO | Construction sand and gravel | 5 | 14 |
| Portable #1 Fort Collins | Simon Contractors | Larimer County, CO | Construction sand and gravel | 5 | 14 |
| Heitf Pit | Mill Iron Mining | Larimer County, CO | Construction sand and gravel | 1 | 13 |
| Portable Crusher | Larimer County Road & Bridge Department | Larimer County, CO | Construction sand and gravel | 3 | 11 |
| Loudwire Quarry | Loudwire Diesel LLC | Larimer County, CO | Construction sand and gravel | 2 | 11 |
| Knox Pit | Loveland Ready Mix Concrete Inc | Larimer County, CO | Construction sand and gravel | 2 | 10 |
| Weaver Quarry | Loukonen Brothers Stone | Larimer County, CO | Dimension sandstone | 1 | 10 |
| Glacier Rock Pit | Glacier Rock Company | Larimer County, CO | Construction sand and gravel | 1 | 10 |
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.