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CLAYTON AGGREGATES

2 miles east of Ignacio Valley Rd, off Pine Hollow, Contra Costa County, CA
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MSHA ID0400159
TYPESurface
MATERIALCrushed, Broken Stone NEC
EMPLOYEES15

MATERIALS PRODUCED

Crushed, Broken Stone NEC

COMPANY INFORMATION

Operator

Martin Marietta Northern California Aggregates,LLC

Parent Company

Martin Marietta Materials Inc

Company Type

Other

DIRECTIONS

100

CONTACT

Contact information not available for unclaimed listings.

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37.936667, -121.957222

Data Source

Mine Safety and Health Administration (MSHA)

Last updated: 1/30/2026

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