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CARDEROCK QUARRIES

US-222 S. Take US-30 W, I-83 S, I-695 W, I-95 S and I-495 W to MD-190 W/River Rd in Potomac. Take exit 39 from I-495 W. Follow River Rd to Seven Locks Rd., Montgomery County, MD
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MSHA ID1800404
TYPESurface
MATERIALCrushed, Broken Stone NEC
EMPLOYEES22

MATERIALS PRODUCED

Crushed, Broken Stone NEC

COMPANY INFORMATION

Operator

Tri-State Stone & Building Supply Inc.

Parent Company

Porto Family Dynasty Trust 1; Brian A Porto et al

Company Type

Corporation

DIRECTIONS

167

CONTACT

Contact information not available for unclaimed listings.

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39.045833, -76.641389

Data Source

Mine Safety and Health Administration (MSHA)

Last updated: 1/30/2026

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