GOLD:

Detour Lake, Ontario

Carson Hill, CA

Royal Mountain King, CA

Alto Mine, CA

Lincoln Mine, CA

Gray Ghost, Montana

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BASE METALS:

Butte, Montana

Lights Creek, CA

Gray Ghost, Montana

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PUMICE:

US Pumice Company

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CONSTRUCTION
AGGREGATES:

Over 100 in 15
California Counties

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ASPHALT
CONCRETE:

Over 40 in 21
California Counties

TALC:

Desertalc, CA

Penhorwood, Ontario

Western Source, CA

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BARITE:

Baroid, Arkansas

Baroid, Missouri

Bariod, B.C.

Perlite, Colorado

Perlite, New Mexico

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LIGNITE:

Ione Energy

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UTILITIES:

Calaveras County Water District

Tri-Dams

Stockton East Water District

Valley Springs Sewer District