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MSHA mine register by county

Mines in Delaware County, Ohio

Delaware County, Ohio has 8 mines on MSHA's register: 1 active, 4 abandoned. 144 accidents have been reported at these mines between 1984 and 2026. Inspectors have issued 372 citations.

Every mine MSHA has registered in Delaware 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 Delaware County →

Mines on register
8
Active
1
Fatalities on record
0
Citations issued
372
0 underground · 8 surface · 0 facilities 0 coal · 8 metal and non-metal 4 abandoned 144 reported accidents, 1984–2026
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.
Delaware County, Ohio · Population 221,160
0.1%
Mining share of county employment
$130,088
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
The National Lime and Stone Company 3 1 0
Galena Shale Tile & Brick Company 1 0 0
Marble Cliff Limestone, Inc. 1 0 0
NLS Asphalt, Inc. 1 0 0
Sidwell Materials Inc 1 0 0
Mines in Delaware County8 on register
  1. Columbus Region Plant
    Surface metal/non-metal · The National Lime & Stone Company · MSHA ID 3300123
    Active
  2. Shawnee Quarry
    Surface metal/non-metal · Marble Cliff Limestone, Inc. · MSHA ID 3300096
    Abandoned
  3. Warrensburg
    Surface metal/non-metal · The National Lime and Stone Company · MSHA ID 3300136
    Temporarily Idled
  4. KPI-JCI FT4250CC Track Mounted Impact Pt
    Surface metal/non-metal · The National Lime and Stone Company · MSHA ID 3304804
    Temporarily Idled
  5. Radnor Quarry
    Surface metal/non-metal · Lang Stone Co. Inc. · MSHA ID 3304673
    Abandoned
  6. RAP Portable Crusher
    Surface metal/non-metal · NLS Asphalt, Inc. · MSHA ID 3304773
    Abandoned
  7. Rock Crusher #3
    Surface metal/non-metal · Sidwell Materials Inc · MSHA ID 3304817
    Temporarily Idled
  8. Vans Valley Road Pit
    Surface metal/non-metal · Galena Shale Tile & Brick Company · MSHA ID 3300553
    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 OhioAll 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.