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MSHA mine register by county

Mines in Osage County, Missouri

Osage County, Missouri has 16 mines on MSHA's register: 3 active, 1 intermittent, 12 abandoned. 12 accidents have been reported at these mines between 1999 and 2025. Inspectors have issued 262 citations.

Every mine MSHA has registered in Osage County, working or not, with the accident, fatality and citation record each one carries on this site. Active mines are listed first, then the rest by the weight of their record.

Abandoned and historical mine features in Osage County →

Mines on register
16
Active
3
Fatalities on record
0
Citations issued
262
0 underground · 16 surface · 0 facilities 0 coal · 16 metal and non-metal 1 intermittent 12 abandoned 12 reported accidents, 1999–2025
Local economic context
ⓘ County figures come from the US Census Bureau's American Community Survey, 5-year pooled estimates, so the 2023 vintage covers 2019 through 2023. The Census category is 'mining, quarrying, and oil and gas extraction', which is broader than MSHA jurisdiction and includes oil and gas workers no mine employs. These figures describe the surrounding county, not this mine, and are not a factor in any specific incident.
Osage County, Missouri · Population 13,379
0.1%
Mining share of county employment
$75,355
Median household income
Source: US Census Bureau, American Community Survey 2023 5-year estimates.
On the map 
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MSHA-registered mine, any status

Mines plot only where MSHA holds a surveyed coordinate for the site; mines the agency locates to a town, county or state centroid are in the counts and the list above but not drawn. Click a point for the mine's status and record.

Operators with the most mines herecurrent operator of record
Operator Mines Active Fatalities
Hensley Mining Company Inc 2 0 0
Barrett Materials, Inc. 1 1 0
Brown Quarries Inc 1 0 0
Capital Quarries Company 1 1 0
Delbert Wieberg Skid Loader & Dump Truck Service 1 0 0
Harbison-Walker Refractories U S 1 0 0
Hidden Oaks Excavating 1 0 0
Higgins Quarry LLC 1 1 0
Martin Marietta Materials, Inc. 1 0 0
Marvin Fredrick Sand & Gravel 1 0 0
Mines in Osage County16 on register
  1. Higgins Quarry, LLC
    Surface metal/non-metal · Higgins Quarry LLC · MSHA ID 2302016
    Active
  2. Liberty Portable Plant
    Surface metal/non-metal · Capital Quarries Company · MSHA ID 2302295
    Active
  3. Belle Plant
    Surface metal/non-metal · Barrett Materials, Inc. · MSHA ID 2302437
    Active
  4. Westphalia Quarry
    Surface metal/non-metal · Martin Marietta Materials, Inc. · MSHA ID 2301908
    Abandoned
  5. Chamois Quarry
    Surface metal/non-metal · Stieferman Construction Services LLC · MSHA ID 2302585
    Intermittent
  6. Belle Stockpile
    Surface metal/non-metal · Harbison-Walker Refractories U S · MSHA ID 2301396
    Abandoned
  7. HOF1
    Surface metal/non-metal · Hidden Oaks Excavating · MSHA ID 2302466
    Abandoned
  8. Lane Mine
    Surface metal/non-metal · Delbert Wieberg Skid Loader & Dump Truck Service · MSHA ID 2302335
    Abandoned
  9. Linn Quarry & Mill
    Surface metal/non-metal · Virgil Smith Quarries · MSHA ID 2301042
    Abandoned
  10. Marvin Fredrick Sand And Gravel
    Surface metal/non-metal · Marvin Fredrick Sand & Gravel · MSHA ID 2301672
    Abandoned
  11. Massman Quarry
    Surface metal/non-metal · Brown Quarries Inc · MSHA ID 2301761
    Abandoned
  12. Meta Sand & Gravel
    Surface metal/non-metal · Meta Sand & Gravel · MSHA ID 2302047
    Abandoned
  13. Osage County Quarry
    Surface metal/non-metal · Osage County Quarry Company · MSHA ID 2301446
    Abandoned
  14. Portable Operation #1
    Surface metal/non-metal · Ralph Case Mining & Excavating · MSHA ID 2301973
    Abandoned
  15. Townley Brothers Tract
    Surface metal/non-metal · Hensley Mining Company Inc · MSHA ID 2301747
    Abandoned
  16. Volkart Tract
    Surface metal/non-metal · Hensley Mining Company Inc · MSHA ID 2301733
    Abandoned

Status, type and operator are as reported to MSHA. Fatality and accident counts are MSHA's reportable accident records for the mine; citations are inspector-issued violations on record. Each mine's own page carries the full detail.

Other counties in MissouriAll counties →
How to read these numbers

The register is MSHA's Mine Data Retrieval System: every operation ever assigned a mine ID, including ones abandoned decades ago, so the count is a history of mining in the county, not a count of working mines. A mine's county is the one its operator reported to MSHA. Fatality and accident counts start with MSHA's reportable-accident records (1983 onward); citation counts are inspector-issued violations on record. We are an independent research tool, not MSHA.