Mining Incidents

Big Five Tunnel Metal/Non-Metal

Colorado Consolidated Metals Corp · Underground
Controlled by Paul E Danio
Boulder County, CO  ·  Abandoned
MSHA Mine ID: 0503829

MSHA record for Big Five Tunnel (mine ID 0503829). 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. Colorado Consolidated Metals Corp 1983 to present
Source: MSHA controller and operator history, updated weekly.

Big Five Tunnel sits in Boulder County, Colorado, where the Census mining category is 0.3% 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.
Boulder County, Colorado · Population 328,317
0.3%
Mining share of county employment
$102,772
Median household income
Source: US Census Bureau, American Community Survey 2023 5-year estimates.

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.