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MSHA mine register by county

Mines in Hillsborough County, New Hampshire

Hillsborough County, New Hampshire has 67 mines on MSHA's register: 7 active, 19 intermittent, 37 abandoned. 1 miner has died and 147 accidents have been reported at these mines between 1983 and 2026. Inspectors have issued 1,234 citations.

Every mine MSHA has registered in Hillsborough 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 Hillsborough County →

Mines on register
67
Active
7
Fatalities on record
1
Citations issued
1,234
0 underground · 66 surface · 1 facilities 0 coal · 67 metal and non-metal 19 intermittent 37 abandoned 147 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.
Hillsborough County, New Hampshire · Population 424,732
0.0%
Mining share of county employment
$100,436
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
C J Bolton Inc 4 0 0
Granite State Concrete Co., Inc. 3 1 0
Leighton White Inc. 3 1 0
Northeast Sand and Gravel LLC 3 0 0
Georgia Stone Management LLC 2 1 1
AGGREGATE INDUSTRIES NORTHEAST REGION 2 0 0
Brox Industries Incorporated 2 1 0
CSSI Contractors 2 0 0
Pike Industries Inc 2 0 0
Pitcherville Sand and Gravel Inc. 2 0 0
Mines in Hillsborough County67 on register
  1. Kitledge Quarry
    Surface metal/non-metal · Georgia Stone Management LLC · MSHA ID 2700002
    Active
  2. Hudson NH Plant
    Surface metal/non-metal · Brox Industries Incorporated · MSHA ID 2700136
    Active
  3. LITCHFIELD SAND & GRAVEL
    Surface metal/non-metal · Continental Paving Inc · MSHA ID 2700251
    Active
  4. Granite State Concrete Pit & Mill
    Surface metal/non-metal · Granite State Concrete Co. Inc · MSHA ID 2700064
    Active
  5. C & C PORTABLE PLANT
    Surface metal/non-metal · C & C TRUCKING LLC · MSHA ID 2700381
    Active
  6. Mathewson Pit
    Surface metal/non-metal · The Philip H Mathewson Co Inc · MSHA ID 2700310
    Active
  7. Wilton Quarry
    Surface metal/non-metal · Leighton A. White, Inc. · MSHA ID 2700552
    Active
  8. Pike Industries Inc C628
    Surface metal/non-metal · Pike Industries Inc · MSHA ID 2700132
    Abandoned
  9. MANCHESTER PLANT
    Surface metal/non-metal · AGGREGATE INDUSTRIES NORTHEAST REGION · MSHA ID 2700057
    Abandoned
  10. Portable Unit #1
    Surface metal/non-metal · Big Foote Crushing LLC · MSHA ID 2700299
    Intermittent
  11. Mt William Quarry
    Surface metal/non-metal · C J Bolton Inc · MSHA ID 2700394
    Intermittent
  12. Groton Road Pit
    Surface metal/non-metal · Wholesale Manufacturing Inc · MSHA ID 2700233
    Abandoned
  13. Mason Quarry
    Surface metal/non-metal · Georgia Stone Management LLC · MSHA ID 2700151
    Intermittent
  14. Peterborough Pit
    Surface metal/non-metal · Northeast Sand and Gravel LLC · MSHA ID 2700516
    Intermittent
  15. Wilton Pit
    Surface metal/non-metal · Northeast Sand and Gravel · MSHA ID 2700486
    Intermittent
  16. C J Bolton Portable Crusher #2
    Surface metal/non-metal · C J Bolton Inc · MSHA ID 2700411
    Temporarily Idled
  17. Granite State Concrete Quarry
    Surface metal/non-metal · Granite State Concrete Co. Inc · MSHA ID 2700430
    Intermittent
  18. Harris Construction Co Inc
    Surface metal/non-metal · Harris Construction Co Inc · MSHA ID 2700056
    Intermittent
  19. Portable Crusher #1
    Surface metal/non-metal · Granite State Concrete Co., Inc. · MSHA ID 2700282
    Intermittent
  20. Stephen Mariano
    Surface metal/non-metal · Stephen Mariano · MSHA ID 2700468
    Intermittent
  21. New Boston Sand & Stone
    Surface metal/non-metal · Thibeault Corp. · MSHA ID 2700444
    Intermittent
  22. Neville Materials LLC
    Surface metal/non-metal · John E. Neville Excavating Inc. · MSHA ID 2700398
    Intermittent
  23. DUCHARME SAND & GRAVEL INC.
    Surface metal/non-metal · Ducharme Sand & Gravel Inc · MSHA ID 2700135
    Abandoned
  24. PICHETTE PORTABLE CRUSHER NO. 1
    Surface metal/non-metal · Pichette Brothers Construction Company Inc · MSHA ID 2700285
    Abandoned
  25. Brownie's Sand & Gravel Inc
    Surface metal/non-metal · Brownie's Sand & Gravel Inc · MSHA ID 2700328
    Intermittent
  26. Bennington Pit
    Surface metal/non-metal · Francestown Sand & Gravel, Inc. · MSHA ID 2700466
    Intermittent
  27. Portable Unit 4
    Surface metal/non-metal · C J Bolton Inc · MSHA ID 2700407
    Abandoned
  28. Associated Aggregate
    Surface metal/non-metal · Associated Aggregates LLC · MSHA ID 2700539
    Intermittent
  29. D.H. Hardwick + Sons, Inc.
    Surface metal/non-metal · D.H. Hardwick + Sons, Inc. · MSHA ID 2700467
    Intermittent
  30. Don Wheeler Construction
    Surface metal/non-metal · Don Wheeler Construction Inc · MSHA ID 2700540
    Abandoned
  31. Lokotrack ST243 Ser #181540
    Surface metal/non-metal · Productive Power Excavating Inc. · MSHA ID 2700547
    Intermittent
  32. Leighton A White Inc Quarry
    Surface metal/non-metal · Leighton A White Inc · MSHA ID 2700506
    Abandoned
  33. E & C TOWNES GRAVEL PIT
    Surface metal/non-metal · Townes Excavating Corp · MSHA ID 2700353
    Abandoned
  34. New Ipswich Pit
    Surface metal/non-metal · Pitcherville Sand and Gravel Inc. · MSHA ID 2700470
    Abandoned
  35. Portable #1
    Surface metal/non-metal · Thibeault Corp Of New Hampshire · MSHA ID 2700279
    Abandoned
  36. Portable #1
    Surface metal/non-metal · John A Brown Excavating · MSHA ID 2700280
    Abandoned
  37. R&D Trucking Co.
    Surface metal/non-metal · R&D Trucking Co. · MSHA ID 2700453
    Intermittent
  38. LB Smith Screening Plant
    Surface metal/non-metal · Quinn Brothers Corporation · MSHA ID 2700495
    Abandoned
  39. PORTABLE UNIT
    Surface metal/non-metal · Ivar Martin · MSHA ID 2700287
    Abandoned
  40. PORTABLE UNIT
    Surface metal/non-metal · Chris Flecchia · MSHA ID 2700301
    Abandoned
  41. EARTHWORKS PORTABLE CRUSHER
    Surface metal/non-metal · Earthworks Inc · MSHA ID 2700342
    Abandoned
  42. NEW BOSTON PIT
    Surface metal/non-metal · AGGREGATE INDUSTRIES NORTHEAST REGION · MSHA ID 2700336
    Abandoned
  43. Milford Location
    Surface metal/non-metal · Northeast Sand and Gravel LLC · MSHA ID 2700507
    Abandoned
  44. McCloskey R155
    Surface metal/non-metal · Leighton White Inc. · MSHA ID 2700512
    Temporarily Idled
  45. Weare Farm
    Surface metal/non-metal · Thibeault Corp. of NE · MSHA ID 2700549
    Intermittent
  46. HILLSBORO SAND & GRAVEL LLC
    Surface metal/non-metal · LEMAY EXCAVATION INC. · MSHA ID 2700423
    Abandoned
  47. PORTABLE PLANT
    Surface metal/non-metal · ARELAS, LLC · MSHA ID 2700372
    Abandoned
  48. Boisvert'S Pit
    Surface metal/non-metal · W Boisvert & Sons Inc · MSHA ID 2700272
    Abandoned
  49. Brookline Pit 1
    Surface metal/non-metal · Lombardo Loam & Gravel · MSHA ID 2700538
    Abandoned
  50. CSSI-12
    Surface metal/non-metal · CSSI Contractors · MSHA ID 2700474
    Abandoned
  51. Kitledge Granite Quarry
    Facility metal/non-metal · Kitledge Granite Corp · MSHA ID 2700096
    Abandoned
  52. Little Hill Pit
    Surface metal/non-metal · CSSI · MSHA ID 2700554
    Intermittent
  53. McCloskey 512RG Trommel
    Surface metal/non-metal · Leighton A White Inc · MSHA ID 2700557
    Abandoned
  54. Milford Pit And Mill
    Surface metal/non-metal · Ryder Concrete Inc · MSHA ID 2700131
    Abandoned
  55. Milford Pit And Mill No 4
    Surface metal/non-metal · X-Orb Of N H Corp · MSHA ID 2700213
    Abandoned
  56. Mill Steel Corp
    Surface metal/non-metal · Mill Steel Corp · MSHA ID 2700498
    Abandoned
  57. Nashua N H Plant
    Surface metal/non-metal · Brox Industries Inc · MSHA ID 2700065
    Abandoned
  58. New Boston Land Company
    Surface metal/non-metal · New Boston Land Company · MSHA ID 2700281
    Abandoned
  59. PETERBOROUGH
    Surface metal/non-metal · Hanson Construction Company · MSHA ID 2700311
    Abandoned
  60. Pike Industries Inc C1664
    Surface metal/non-metal · Pike Industries Inc · MSHA ID 2700560
    Temporarily Idled
  61. PORTABLE PLANT #1
    Surface metal/non-metal · Hudson Sand & Gravel Inc · MSHA ID 2700278
    Abandoned
  62. PORTABLE UNIT #3
    Surface metal/non-metal · C J Bolton Inc · MSHA ID 2700339
    Abandoned
  63. Riverdale Sand & Gravel
    Surface metal/non-metal · Riverdale Sand & Gravel Inc · MSHA ID 2700270
    Abandoned
  64. Riverside Paving & Excavating Incorporat
    Surface metal/non-metal · Riverside Paving & Excavating Inc · MSHA ID 2700241
    Abandoned
  65. Route 111a Pit
    Surface metal/non-metal · Keith Construction Inc · MSHA ID 2700236
    Abandoned
  66. Sandvik QJ241-10750
    Surface metal/non-metal · Productive Power Excavating Inc · MSHA ID 2700568
    Temporarily Idled
  67. Telsmith
    Surface metal/non-metal · Pitcherville Sand & Gravel · MSHA ID 1901085
    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 HampshireAll 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.