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SANTA MARGARITA AGGREGATES

2 miles east of Santa Margarita on El Camino Real, cross over railroad tracks at mine sign., San Luis Obispo County, CA
MSHA ID0401616
TYPESurface
MATERIALConstruction Sand and Gravel
EMPLOYEES13

MATERIALS PRODUCED

Construction Sand and Gravel

COMPANY INFORMATION

Operator

Martin Marietta Northern California Aggregates,LLC

Parent Company

Martin Marietta Materials Inc

Company Type

Other

DIRECTIONS

250

CONTACT

Contact information not available for unclaimed listings.

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35.417778, -120.575833

Data Source

Mine Safety and Health Administration (MSHA)

Last updated: 1/30/2026