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MSHA mine register by county

Mines in Piscataquis County, Maine

Piscataquis County, Maine has 22 mines on MSHA's register: 1 active, 4 intermittent, 17 abandoned. 4 accidents have been reported at these mines between 1986 and 2001. Inspectors have issued 276 citations.

Every mine MSHA has registered in Piscataquis 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 Piscataquis County →

Mines on register
22
Active
1
Fatalities on record
0
Citations issued
276
0 underground · 21 surface · 1 facilities 0 coal · 22 metal and non-metal 4 intermittent 17 abandoned 4 reported accidents, 1986–2001
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.
Piscataquis County, Maine · Population 17,125
0.0%
Mining share of county employment
$55,234
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
Haley's Inc. 4 0 0
Mike Theriault Construction, LLC 2 0 0
Ames Construction Inc. 1 0 0
Barrett Paving Materials Inc 1 0 0
Bishop Concrete LLC 1 0 0
CARL VAINIO 1 0 0
Earl Gerrish & Sons Inc 1 1 0
Hayes Enterprises Inc 1 0 0
Indian Hill Inc 1 0 0
J. R. Vinagro Corporation 1 0 0
Mines in Piscataquis County22 on register
  1. Gerrish Pit
    Surface metal/non-metal · Earl Gerrish & Sons Inc · MSHA ID 1700588
    Active
  2. Sangerville Portable
    Surface metal/non-metal · Haley's Inc · MSHA ID 1700206
    Abandoned
  3. Brownville Junction Pit and Mill
    Surface metal/non-metal · Bishop Concrete LLC · MSHA ID 1700290
    Abandoned
  4. O'BRIEN & SONS
    Surface metal/non-metal · O'BRIEN & SONS · MSHA ID 1700968
    Intermittent
  5. Sangerville Pit and Mill
    Surface metal/non-metal · Haley's Inc · MSHA ID 1700797
    Abandoned
  6. Milo Pit
    Surface metal/non-metal · Ames Construction Inc. · MSHA ID 1700975
    Abandoned
  7. Portable Plant
    Surface metal/non-metal · Mike Theriault Construction, LLC · MSHA ID 1700988
    Intermittent
  8. Haley's Milo Pit
    Surface metal/non-metal · Haley's Inc. · MSHA ID 1701052
    Intermittent
  9. MS & D Gravel LLC
    Surface metal/non-metal · MS & D Gravel LLC · MSHA ID 1700670
    Abandoned
  10. BPM SCREEN
    Surface metal/non-metal · Barrett Paving Materials Inc · MSHA ID 1700691
    Abandoned
  11. Portable Screen
    Surface metal/non-metal · Haley's Inc. · MSHA ID 1701101
    Abandoned
  12. SQUAW PIT
    Surface metal/non-metal · Northern Woodlands · MSHA ID 1700690
    Abandoned
  13. AUCDIN / PORTABLE PLANT
    Surface metal/non-metal · Hayes Enterprises Inc · MSHA ID 1700669
    Abandoned
  14. Colonial Mine
    Surface metal/non-metal · CARL VAINIO · MSHA ID 1700785
    Abandoned
  15. COVA RUBERTS
    Surface metal/non-metal · Sheldon Slate Products Company Inc · MSHA ID 1700246
    Abandoned
  16. Kennedy Slate Mine Monson
    Surface metal/non-metal · Kennedy Slate Mine Monson · MSHA ID 1700580
    Abandoned
  17. Portable 15
    Surface metal/non-metal · J. R. Vinagro Corporation · MSHA ID 3700250
    Intermittent
  18. PORTABLE PLANT
    Surface metal/non-metal · Rowe Construction · MSHA ID 1700409
    Abandoned
  19. PORTABLE PLANT
    Surface metal/non-metal · Indian Hill Inc · MSHA ID 1700593
    Abandoned
  20. Portland Monson Mill
    Facility metal/non-metal · Portland-Monson Slate Company · MSHA ID 1700186
    Abandoned
  21. THERIAULT/ABBOT PIT
    Surface metal/non-metal · Mike Theriault Construction · MSHA ID 1700701
    Abandoned
  22. WILLIAM W. LONDON & SON
    Surface metal/non-metal · William W London & Son · MSHA ID 1700614
    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 MaineAll 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.