Brownstone Quarry

MSHA Mine ID: 0405453

Material Type

Dimension Sandstone

Mine Type

Surface

Classification Confidence

95% (HIGH)

Location Status

VERIFIED

Location

39.31393, -122.191039

View on Google Maps

Operator Information

Operator

Brownstone Quarry

Controller

Charles J Coffyn

Location

County: Colusa

State: CA

Country: US

Data Source

US_MSHA

Snapshot: 2026-01-30

Classification: vv1

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