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MSHA mine register by county

Mines in Hunterdon County, New Jersey

Hunterdon County, New Jersey has 7 mines on MSHA's register: 3 active, 1 intermittent, 3 abandoned. 190 accidents have been reported at these mines between 1983 and 2026. Inspectors have issued 506 citations.

Every mine MSHA has registered in Hunterdon 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 Hunterdon County →

Mines on register
7
Active
3
Fatalities on record
0
Citations issued
506
0 underground · 6 surface · 1 facilities 0 coal · 7 metal and non-metal 1 intermittent 3 abandoned 190 reported accidents, 1983–2026
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.
Hunterdon County, New Jersey · Population 129,448
0.2%
Mining share of county employment
$139,453
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
Asbury Graphite Mills Inc 1 1 0
Delaware Quarries Inc 1 0 0
LIBERTY STONE & AGGREGATES-CLINTON QUARRY 1 0 0
Oldwick Materials LLC 1 1 0
Pattenburg Quarry Company Inc 1 0 0
Trap Rock Industries LLC 1 0 0
Vulcan Construction Materials, LLC 1 1 0
Mines in Hunterdon County7 on register
  1. ASBURY PLANT
    Facility metal/non-metal · Asbury Graphite Mills Inc · MSHA ID 2800956
    Active
  2. Glen Gardner Quarry
    Surface metal/non-metal · Vulcan Construction Materials, LLC · MSHA ID 2800009
    Active
  3. Oldwick Materials LLC
    Surface metal/non-metal · Oldwick Materials LLC · MSHA ID 2800012
    Active
  4. Lambertville Quarry
    Surface metal/non-metal · Trap Rock Industries LLC · MSHA ID 2800031
    Abandoned
  5. LIBERTY STONE & AGGREGATES-CLINTON
    Surface metal/non-metal · LIBERTY STONE & AGGREGATES-CLINTON QUARRY · MSHA ID 2801047
    Intermittent
  6. Pattenburg Quarry Company Incorporated
    Surface metal/non-metal · Pattenburg Quarry Company Inc · MSHA ID 2800027
    Abandoned
  7. Allen Quarry
    Surface metal/non-metal · Delaware Quarries Inc · MSHA ID 2800005
    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 New JerseyAll 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.