MSHA Kids Page: Mining resources by state: California

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Mine Safety and Health Administration - MSHA
- Protecting Miners' Safety and Health Since 1978

Principal Minerals Mined Here!

Portland
Cement

Sand and
Gravel

Gold

Boron

What's Boron?

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U.S. Department of Labor | Mine Safety and Health Administration (MSHA) | 1100 Wilson Boulevard, 21st Floor | Arlington, VA 22209-3939
www.msha.gov | Telephone: (202) 693-9400 | Fax-on-demand: (202) 693-9401