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MSHA mine register by county

Mines in Montgomery County, Pennsylvania

Montgomery County, Pennsylvania has 17 mines on MSHA's register: 7 active, 1 intermittent, 9 abandoned. 1 are coal mines and 16 metal or non-metal. 2 miners have died and 486 accidents have been reported at these mines between 1983 and 2026. Inspectors have issued 1,060 citations.

Every mine MSHA has registered in Montgomery 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 Montgomery County →

Mines on register
17
Active
7
Fatalities on record
2
Citations issued
1,060
0 underground · 15 surface · 2 facilities 1 coal · 16 metal and non-metal 1 intermittent 9 abandoned 486 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.
Montgomery County, Pennsylvania · Population 861,225
0.1%
Mining share of county employment
$111,521
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
GLASGOW INC 4 2 1
Heidelberg Materials Northeast LLC 4 2 1
Haines & Kibblehouse Inc 2 0 0
American Olean Tile 1 0 0
Gill Quarries Inc 1 1 0
Harleysville Materials LLC 1 1 0
Mignatti Construction Company Inc 1 0 0
Pomona Pipe Products Company 1 0 0
Stoudt's Ferry Preparation Company Inc 1 1 0
Wissahickon Stone Quarry, LLC 1 0 0
Mines in Montgomery County17 on register
  1. Plymouth Meeting Quarry
    Surface metal/non-metal · Heidelberg Materials Northeast LLC · MSHA ID 3600052
    Active
  2. SPRING HOUSE QUARRY
    Surface metal/non-metal · Glasgow Inc · MSHA ID 3603429
    Active
  3. MCCOY QUARRY
    Surface metal/non-metal · GLASGOW INC · MSHA ID 3600020
    Active
  4. East Norriton Quarry
    Surface metal/non-metal · Gill Quarries Inc · MSHA ID 3600098
    Active
  5. Harleysville Materials
    Surface metal/non-metal · Harleysville Materials LLC · MSHA ID 3600143
    Active
  6. Perkiomenville Quarry
    Surface metal/non-metal · Heidelberg Materials Northeast LLC · MSHA ID 3600128
    Active
  7. Oaks Plant
    Facility coal · Stoudt's Ferry Preparation Company Inc · MSHA ID 3608322
    Active
  8. IVY ROCK QUARRY
    Surface metal/non-metal · Glasgow Inc · MSHA ID 3600100
    Abandoned
  9. SANATOGA QUARRY
    Surface metal/non-metal · H&K Group, Inc. · MSHA ID 3600218
    Abandoned
  10. Montgomery Stone
    Surface metal/non-metal · Glasgow Inc · MSHA ID 3600173
    Abandoned
  11. Wissahickon Stone Quarry
    Surface metal/non-metal · Wissahickon Stone Quarry, LLC · MSHA ID 3600148
    Intermittent
  12. PORTABLE 517
    Surface metal/non-metal · Heidelberg Materials Northeast LLC · MSHA ID 3610299
    Abandoned
  13. Lansdale Plant
    Facility metal/non-metal · American Olean Tile · MSHA ID 3604799
    Abandoned
  14. Mignatti Constr Co Inc Bethayres Qu
    Surface metal/non-metal · Mignatti Construction Company Inc · MSHA ID 3600169
    Abandoned
  15. P.M.S.
    Surface metal/non-metal · Haines & Kibblehouse Inc · MSHA ID 3608734
    Abandoned
  16. Portable 516
    Surface metal/non-metal · Heidelberg Materials Northeast LLC · MSHA ID 3610300
    Abandoned
  17. Pottstown Shale Pit
    Surface metal/non-metal · Pomona Pipe Products Company · MSHA ID 3600679
    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 PennsylvaniaAll 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.