Mining Incidents

Brownfield Pit Metal/Non-Metal

R. Rolfe Corporation · Surface
Controlled by Edwin Rexford Rolfe III
Brownfield, Oxford County, ME  ·  Abandoned
MSHA Mine ID: 1701139

MSHA record for Brownfield Pit (mine ID 1701139). Fatalities, non-fatal incidents grouped by year, current operator and controller, and mine context.

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Fatalities
0
Total incidents
0
Years on record
Latest incident
Ownership history
  1. R. Rolfe Corporation 2024 to present
Source: MSHA controller and operator history, updated weekly.
Workforce and production
Year Employees
2025 0
2024 1
Source: MSHA quarterly employment and production, updated weekly.

Brownfield Pit sits in Oxford County, Maine, where the Census mining category is 0.1% of county employment.

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.
Oxford County, Maine · Population 58,728
0.1%
Mining share of county employment
$57,933
Median household income
Source: US Census Bureau, American Community Survey 2023 5-year estimates.
Quarterly safety rates
Citations per million reported employee-hours. Rates begin in 2000, when MSHA's quarterly employment data starts; earlier incidents are counted but cannot be rate-adjusted. Quarters under 100,000 reported hours are greyed: too few hours for a stable rate.
Citations per million employee-hours, as reported to MSHA
Quarter Hours worked Citations S&S Per 1M hrs
2025 Q1 0 0 0
2024 Q4 153 0 0 0.0

No reportable incidents on file.

MSHA has no recorded reportable accidents for this mine in the current dataset. New reports appear here within a week of being filed.