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MSHA mine register by county

Mines in Cass County, Missouri

Cass County, Missouri has 11 mines on MSHA's register: 3 active, 1 intermittent, 7 abandoned. 1 miner has died and 88 accidents have been reported at these mines between 1984 and 2025. Inspectors have issued 364 citations.

Every mine MSHA has registered in Cass 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 Cass County →

Mines on register
11
Active
3
Fatalities on record
1
Citations issued
364
1 underground · 10 surface · 0 facilities 0 coal · 11 metal and non-metal 1 intermittent 7 abandoned 88 reported accidents, 1984–2025
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.
Cass County, Missouri · Population 109,393
0.1%
Mining share of county employment
$87,413
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
Beyer Crushed Rock Company 2 1 0
Holliday Sand & Gravel Company, Inc. 2 1 0
Limpus Quarries Inc 2 0 0
Martin Marietta Materials, Inc. 2 1 0
Hilty Quarries, Inc. 1 0 1
C & C Rock Quarry 1 0 0
Hunt Martin Materials L.L.C. 1 0 0
Mines in Cass County11 on register
  1. GREENWOOD QUARRY
    Surface metal/non-metal · Martin Marietta Materials, Inc. · MSHA ID 2300141
    Active
  2. Harrisonville Quarry
    Surface metal/non-metal · Holliday Sand & Gravel Company, Inc. · MSHA ID 2301148
    Active
  3. BEYER CRUSHED ROCK CO
    Surface metal/non-metal · Beyer Crushed Rock Company · MSHA ID 2302003
    Active
  4. Eagle #2, Portable Plant
    Surface metal/non-metal · Hilty Quarries, Inc. · MSHA ID 2301170
    Abandoned
  5. Peculiar Mine
    Surface metal/non-metal · Martin Marietta Materials, Inc. · MSHA ID 2300765
    Abandoned
  6. C & C Rock Quarry
    Surface metal/non-metal · C & C Rock Quarry · MSHA ID 2302245
    Abandoned
  7. HHS Q Portable Plant 3
    Surface metal/non-metal · Holliday Sand & Gravel Company, Inc. · MSHA ID 2302547
    Intermittent
  8. Peculiar Mine
    Underground metal/non-metal · Hunt Martin Materials L.L.C. · MSHA ID 2302344
    Abandoned
  9. Beyer Cleveland Quarry
    Surface metal/non-metal · Beyer Crushed Rock Company · MSHA ID 2301723
    Abandoned
  10. Limpus Quarries Incorporated
    Surface metal/non-metal · Limpus Quarries Inc · MSHA ID 2300271
    Abandoned
  11. Universal Portable Plant
    Surface metal/non-metal · Limpus Quarries Inc · MSHA ID 2301950
    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.