John Henry No 1 Mine

AbandonedCoal (Bituminous)SurfaceMSHA

Location

StateWashington
CountyKing
Nearest TownBlack Diamond
Coordinates47.31639, -121.96639

Commodities

PrimaryCoal (Bituminous)

Mine Details

StatusAbandoned
TypeSurface
OperatorPacific Coast Coal Company
Data SourceMSHA
Source ID4502967

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.

Other Mines in King County

View all mines in King County →

Other Coal (Bituminous) Mines in Washington

All coal (bituminous) mines in Washington →