Mining Incidents
Search Operators Mines Alerts Research Controllers Fatalgrams About
Countries
Peru Chile
English Español
States › Wisconsin
MSHA mine register by county

Mines in Monroe County, Wisconsin

Monroe County, Wisconsin has 25 mines on MSHA's register: 6 active, 10 intermittent, 9 abandoned. 206 accidents have been reported at these mines between 1989 and 2026. Inspectors have issued 1,023 citations.

Every mine MSHA has registered in Monroe 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 Monroe County →

Mines on register
25
Active
6
Fatalities on record
0
Citations issued
1,023
0 underground · 25 surface · 0 facilities 0 coal · 25 metal and non-metal 10 intermittent 9 abandoned 206 reported accidents, 1989–2026
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.
Monroe County, Wisconsin · Population 46,169
1.6%
Mining share of county employment
$68,213
Median household income
Source: US Census Bureau, American Community Survey 2023 5-year estimates.
On the map 
Loading map…
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
Gerke Excavating, Inc. 9 1 0
Milestone Materials Division of Mathy Construction 4 1 0
Allan Gerke & Sons Inc 1 0 0
Antony Excavating 1 0 0
Arthur Overgaard Division 1 0 0
Arthur Overgaard Inc 1 0 0
Brooks Excavating LLC 1 0 0
Carri Scharf Materials Company 1 0 0
HC Wyeville Operating LLC 1 1 0
Iron Oak Sand LLC 1 1 0
Mines in Monroe County25 on register
  1. Smart Sand, Inc.
    Surface metal/non-metal · Smart Sand, Inc · MSHA ID 4703625
    Active
  2. Tunnel City
    Surface metal/non-metal · Iron Oak Sand LLC · MSHA ID 4703699
    Active
  3. HC Wyeville Mine
    Surface metal/non-metal · HC Wyeville Operating LLC · MSHA ID 4703611
    Active
  4. Plant #32
    Surface metal/non-metal · Milestone Materials Div/Mathy Construction Co · MSHA ID 4702405
    Active
  5. Sparta, WI Plant
    Surface metal/non-metal · U.S.Silica Energy Company · MSHA ID 4703644
    Active
  6. Gerke Plant #1
    Surface metal/non-metal · Gerke Excavating Inc · MSHA ID 4703357
    Active
  7. Wisconsin White Sand, LLC
    Surface metal/non-metal · Wisconsin White Sand, LLC · MSHA ID 4703569
    Abandoned
  8. PLANT #41
    Surface metal/non-metal · Milestone Materials Division Mathy Construction · MSHA ID 4703125
    Abandoned
  9. Gerke Plant #3
    Surface metal/non-metal · Gerke Excavating Inc · MSHA ID 4700144
    Intermittent
  10. Crusher No 1
    Surface metal/non-metal · Antony Excavating · MSHA ID 4703099
    Abandoned
  11. Gerke Plant #5
    Surface metal/non-metal · Gerke Excavating, Inc. · MSHA ID 4703710
    Abandoned
  12. Sparta Plant
    Surface metal/non-metal · Carri Scharf Materials Company · MSHA ID 4703668
    Intermittent
  13. Gerke Plant #6
    Surface metal/non-metal · Gerke Excavating, Inc. · MSHA ID 4703711
    Intermittent
  14. Plant #79
    Surface metal/non-metal · Milestone Materials Division of Mathy Construction · MSHA ID 4703610
    Intermittent
  15. Gerke Plant #2
    Surface metal/non-metal · Gerke Excavating · MSHA ID 4703730
    Abandoned
  16. Gerke Plant #4
    Surface metal/non-metal · Gerke Excavating Inc · MSHA ID 4703447
    Intermittent
  17. Mack Quarry
    Surface metal/non-metal · Brooks Excavating LLC · MSHA ID 4703938
    Intermittent
  18. Gerke Plant #24-Metso Track Crusher
    Surface metal/non-metal · Gerke Excavating Inc · MSHA ID 4703356
    Intermittent
  19. Plant 93
    Surface metal/non-metal · Milestone Materials Division of Mathy Construction · MSHA ID 4703723
    Intermittent
  20. Gerke Plant #7
    Surface metal/non-metal · Gerke Excavating Inc · MSHA ID 4703820
    Intermittent
  21. Plant # 21
    Surface metal/non-metal · Gerke Excavating Inc · MSHA ID 4703969
    Intermittent
  22. Gerke Quarry
    Surface metal/non-metal · Allan Gerke & Sons Inc · MSHA ID 4700115
    Abandoned
  23. Monroe County Operations
    Surface metal/non-metal · Arthur Overgaard Inc · MSHA ID 4702234
    Abandoned
  24. Pep Single Vibe I
    Surface metal/non-metal · Arthur Overgaard Division · MSHA ID 4703043
    Abandoned
  25. Wilson Quarry
    Surface metal/non-metal · Yahara Materials Inc · MSHA ID 4702715
    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 WisconsinAll 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.