John Henry 1 coal mine and processing in Black Diamond
Coal mining came to an end in Washington State with the closure of the Centralia Coal Mine in 2006. The John Henry 1 Mine in aptly named Black Diamond has not operated since 1997 but has recently applied to reopen and in the process finish some reclamation. The Environmental Assessment (JHM_EA.pdf) is currently in the public comment period. The John Henry 1 Mine has a contract to supply coal for cement production to a Richmond BC concrete company and hopes to perhaps sell coal for cement production in Seattle. In addition to the coal seam that the mine intends to exploit, the formation also contains a seam of clay that is also used in concrete formulations.