Data / Mines / Colorado / Portable Crusher# 2
Portable Crusher# 2: 20 MSHA citations
Updated November 6, 2026. Source: US Department of Labor, Mine Safety and Health Administration (MSHA), Open Government Data Sets.
Portable Crusher# 2 is an intermittent construction sand and gravel surface mine in Montrose County, Colorado, operated by Rocky Mountain Aggregate & Construction LLC with 6 employees on MSHA's record (mine ID 0505036). Since January 1, 2022 MSHA inspectors issued 20 citations and orders there with $3,149 in proposed penalties, and 0 accident reports were filed there, with no injury or illness cases.
The request: Watch Portable Crusher# 2 (MSHA mine ID 0505036) in Montrose County, Colorado: each new citation and each accident report. $10 of work on sign-up, no card.
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- MSHA mine ID
- 0505036
- Status
- Intermittent since May 14, 2018
- Main commodity
- Construction sand and gravel
- Mine type
- Surface
- County
- Montrose County, Colorado
- Nearest town
- Montrose CO
- Operator
- Rocky Mountain Aggregate & Construction LLC
- Employees
- 6
- MSHA field office
- Delta CO Field Office
- Citations and orders since January 1, 2022
- 20
- Significant and substantial
- 7 (35.0%)
- Closure orders
- 1
- High negligence or reckless
- 4
- Proposed penalties
- $3,149
- Amount paid so far
- $3,149
- Inspections
- 9
- Inspector hours on site
- 48
- Citations per inspection
- 2.22 (all mines 2.30)
- Accident reports
- 0
- Injury and illness cases
- 0
- Fatalities
- 0
- Latest MSHA record
- October 28, 2025
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 | 8 | 2 | $1,317 | 0 |
| 2023 | 8 | 4 | $1,240 | 0 |
| 2024 | 3 | 1 | $441 | 0 |
| 2025 | 1 | 0 | $151 | 0 |
Standards cited most at Portable Crusher# 2
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 56.14100 | Surface metal and nonmetal mines | 4 |
| 30 CFR 56.12008 | Surface metal and nonmetal mines | 2 |
| 30 CFR 50.30 | Reporting of accidents, injuries and illnesses | 2 |
| 30 CFR 56.18002 | Surface metal and nonmetal mines | 2 |
| 30 CFR 56.12032 | Surface metal and nonmetal mines | 2 |
| 30 CFR 56.14107 | Surface metal and nonmetal mines | 1 |
| 30 CFR 56.12028 | Surface metal and nonmetal mines | 1 |
| 30 CFR 57.14100 | Underground metal and nonmetal mines | 1 |
| 30 CFR 41.12 | Notice of legal identity | 1 |
| 30 CFR 56.14132 | Surface metal and nonmetal mines | 1 |
| 30 CFR 46.3 | Training at sand, gravel and surface stone mines | 1 |
| 30 CFR 46.5 | Training at sand, gravel and surface stone mines | 1 |
| 30 CFR 56.20002 | Surface metal and nonmetal mines | 1 |
Other open mines in Montrose County, Colorado
| Mine | Operator | County | Main commodity | Employees | Citations since 2022 |
|---|---|---|---|---|---|
| Portable Crusher# 1 | Rocky Mountain Aggregate & Construction LLC | Montrose County, CO | Construction sand and gravel | 5 | 23 |
| Western Gravel Inc. | Western Gravel Inc | Montrose County, CO | Construction sand and gravel | 6 | 22 |
| Portable 2 | Western Gravel Inc | Montrose County, CO | Construction sand and gravel | 4 | 6 |
| CR7 | Oldcastle SW Group, Inc. | Montrose County, CO | Construction sand and gravel | 3 | 3 |
| CR8 | Oldcastle SW Group, Inc. | Montrose County, CO | Construction sand and gravel | 3 | 3 |
| Screen Plant | Western Gravel Inc | Montrose County, CO | Construction sand and gravel | 1 | 1 |
| Mobile Hpsa Remediation Equipment | Disa Technologies, Inc. | Montrose County, CO | Uranium ore | 3 | 0 |
| Kichelmann 1 | Asteroid Explorations LLC | Montrose County, CO | Gold ore | 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.