Data / Mines / Wyoming / Kolberg 271B
Kolberg 271B, Sweetwater County, Wyoming: 2 MSHA citations
Updated November 6, 2026. Source: US Department of Labor, Mine Safety and Health Administration (MSHA), Open Government Data Sets.
Kolberg 271B is an active construction sand and gravel surface mine in Sweetwater County, Wyoming, operated by Searle Brothers Construction Company with 3 employees on MSHA's record (mine ID 4801496). Since January 1, 2022 MSHA inspectors issued 2 citations and orders there with $294 in proposed penalties, and 0 accident reports were filed there, with no injury or illness cases.
The request: Watch Kolberg 271B (MSHA mine ID 4801496) in Sweetwater County, Wyoming: each new citation and each accident report. $10 of work on sign-up, no card.
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- MSHA mine ID
- 4801496
- Status
- Active since July 1, 2025
- Main commodity
- Construction sand and gravel
- Mine type
- Surface
- County
- Sweetwater County, Wyoming
- Nearest town
- Granger
- Operator
- Searle Brothers Construction Company
- Employees
- 3
- MSHA field office
- Green River WY Field Office
- Citations and orders since January 1, 2022
- 2
- Significant and substantial
- 0 (0.0%)
- Closure orders
- 0
- High negligence or reckless
- 0
- Proposed penalties
- $294
- Amount paid so far
- $294
- Inspections
- 7
- Inspector hours on site
- 43
- Citations per inspection
- 0.29 (all mines 2.30)
- Accident reports
- 0
- Injury and illness cases
- 0
- Fatalities
- 0
- Latest MSHA record
- September 16, 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 | 1 | 0 | $143 | 0 |
| 2025 | 1 | 0 | $151 | 0 |
Standards cited most at Kolberg 271B
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 56.14101 | Surface metal and nonmetal mines | 1 |
| 30 CFR 56.4201 | Surface metal and nonmetal mines | 1 |
Other open mines in Sweetwater County, Wyoming
| Mine | Operator | County | Main commodity | Employees | Citations since 2022 |
|---|---|---|---|---|---|
| We Soda @ Westvaco | We Soda Alkali, LLC | Sweetwater County, WY | Trona | 815 | 996 |
| American Soda LLC | American Soda LLC | Sweetwater County, WY | Trona | 449 | 804 |
| Tata Chemicals Mine | Tata Chemicals Soda Ash Partners LLC | Sweetwater County, WY | Trona | 539 | 626 |
| Big Island Mine & Refinery | Sisecam Wyoming, LLC | Sweetwater County, WY | Trona | 437 | 345 |
| Black Butte And Leucite Hills Mines | Black Butte Coal Company | Sweetwater County, WY | Coal (bituminous) | 59 | 23 |
| Portable Crusher Unit F | Arizona Materials | Sweetwater County, WY | Construction sand and gravel | 9 | 18 |
| Pioneer Trails Pit #565 | Sunroc Corporation | Sweetwater County, WY | Construction sand and gravel | 4 | 17 |
| Jim Bridger Mine | Bridger Coal Company | Sweetwater County, WY | Coal (bituminous) | 160 | 16 |
| Mobile Crusher, 76-4034 | Sunroc Corporation | Sweetwater County, WY | Construction sand and gravel | 3 | 9 |
| 2001 BL Pegson Crusher | H. B. Lee Construction Co., Inc. | Sweetwater County, WY | Construction sand and gravel | 2 | 8 |
| Leucite Mine #11 | Searle Brothers Construction Company | Sweetwater County, WY | Crushed, broken stone | 2 | 7 |
| 2004 Chieftan Screener | Lee Sand and Gravel, Inc | Sweetwater County, WY | Construction sand and gravel | 2 | 3 |
| Plattoga Pit | Plattoga Holdings, LLC | Sweetwater County, WY | Construction sand and gravel | 3 | 0 |
| 2016 Metso Nordbert C120 Jaw Crusher Pla | Searle Brothers Construction Company | Sweetwater County, WY | 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.