Data / Mines / Wyoming / Jig Plant
Jig Plant, Campbell County, Wyoming: 0 MSHA citations
Updated November 6, 2026. Source: US Department of Labor, Mine Safety and Health Administration (MSHA), Open Government Data Sets.
Jig Plant is a temporarily idled sand, common surface mine in Campbell County, Wyoming, operated by Melgaard Construction Company Inc. with 0 employees on MSHA's record (mine ID 4801831). Since January 1, 2022 MSHA inspectors issued 0 citations and orders there with $0 in proposed penalties, and 0 accident reports were filed there, with no injury or illness cases.
The request: Watch Jig Plant (MSHA mine ID 4801831) in Campbell County, Wyoming: each new citation and each accident report. $10 of work on sign-up, no card.
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- MSHA mine ID
- 4801831
- Status
- Temporarily Idled since April 1, 2020
- Main commodity
- Sand, common
- Mine type
- Surface
- County
- Campbell County, Wyoming
- Nearest town
- Gillette
- Operator
- Melgaard Construction Company Inc.
- Employees
- 0
- MSHA field office
- Gillette WY Field Office
- Citations and orders since January 1, 2022
- 0
- Inspections
- 1
- Inspector hours on site
- 1
- Citations per inspection
- 0.00 (all mines 2.30)
- Accident reports
- 0
- Injury and illness cases
- 0
- Fatalities
- 0
- Latest MSHA record
- June 22, 2023
Other open mines in Campbell County, Wyoming
| Mine | Operator | County | Main commodity | Employees | Citations since 2022 |
|---|---|---|---|---|---|
| North Antelope Rochelle Mine | Peabody Powder River Mining LLC | Campbell County, WY | Coal (bituminous) | 1,207 | 593 |
| Black Thunder | Thunder Basin Coal Company LLC | Campbell County, WY | Coal (bituminous) | 408 | 394 |
| Belle Ayr Mine | Eagle Specialty Materials LLC | Campbell County, WY | Coal (bituminous) | 240 | 207 |
| Caballo Mine | Peabody Caballo Mining, LLC | Campbell County, WY | Coal (bituminous) | 163 | 131 |
| Buckskin Mine | Buckskin Mining Company | Campbell County, WY | Coal (bituminous) | 120 | 130 |
| Rawhide Mine | Peabody Caballo Mining, LLC | Campbell County, WY | Coal (bituminous) | 113 | 120 |
| Eagle Butte Mine | Eagle Specialty Materials LLC | Campbell County, WY | Coal (bituminous) | 232 | 119 |
| Cordero Rojo Mine | Navajo Transitional Energy Company, LLC | Campbell County, WY | Coal (bituminous) | 215 | 79 |
| Coal Creek Mine | Thunder Basin Coal Company LLC | Campbell County, WY | Coal (bituminous) | 36 | 71 |
| Wyodak Mine | Black Hills Energy | Campbell County, WY | Coal (bituminous) | 53 | 45 |
| Dry Fork Mine | Western Fuels-Wyoming Inc | Campbell County, WY | Coal (bituminous) | 67 | 14 |
| 2019 Lippmann 4800 Impactor | Melgaard Construction Company Inc. | Campbell County, WY | Construction sand and gravel | 5 | 10 |
| 2003 Cedar Rapids Electric Jaw | Melgaard Construction Company Inc. | Campbell County, WY | Construction sand and gravel | 5 | 8 |
| 2003 Cedar Rapids Cone Crusher | Melgaard Construction Company Inc. | Campbell County, WY | Construction sand and gravel | 4 | 6 |
| Qac #1 | Quality Agg & Construction Inc | Campbell County, WY | Construction sand and gravel | 4 | 4 |
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.