Section 31 Mine

AbandonedCommon Clays NECSurfaceMSHA

Location

StateWashington
CountyKing
Nearest TownNewcastle
Coordinates47.53944, -122.11833

Commodities

PrimaryCommon Clays NEC

Mine Details

StatusAbandoned
TypeSurface
OperatorMutual Materials Company
Data SourceMSHA
Source ID4501052

What This Means

This mine is listed as abandoned or sealed in federal records. Abandoned mines can pose safety and environmental risks, including unstable ground, toxic gas accumulation, flooded shafts, and potential groundwater contamination from heavy metals or acid mine drainage. Never enter an abandoned mine. If you live near this site, consider checking with your state environmental agency about any ongoing remediation or monitoring programs.

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