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LANGLEY HILL QUARRY

Take Hwy.84/Woodside Rd off Hwy. 280 go west and follow the road until you get to Skyline Blvd./Hwy. 35. Turn right on Hwy 35 go 4 1/12 miles until you see our sign on the right side and turn right go down road 1 mile until you reach the Quarry., San Mateo County, CA
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MSHA ID0400170
TYPESurface
MATERIALCrushed, Broken Traprock
EMPLOYEES4

MATERIALS PRODUCED

Crushed, Broken Traprock

COMPANY INFORMATION

Operator

Langley Hill Quarry

Parent Company

Michael W Dempsey; Patrick K Dempsey

Company Type

Partnership

DIRECTIONS

60

CONTACT

Contact information not available for unclaimed listings.

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37.336111, -122.247778

Data Source

Mine Safety and Health Administration (MSHA)

Last updated: 1/30/2026

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