Wikimedi'Òc

Sheared semi-anthracite coal (Langhorne Coal, Lower Mississippian; Cloyds Mountain roadcut, Valley Coalfield, Virginia, USA) 1 (29849218283).jpg - Ser Amantio di Nicolao

Sheared semi-anthracite coal (Langhorne Coal, Lower Mississippian; Cloyds Mountain roadcut, Valley Coalfield, Virginia, USA) 2 (29850774144).jpg - Ser Amantio di Nicolao

Sheared semi-anthracite coal (Langhorne Coal, Lower Mississippian; Cloyds Mountain roadcut, Valley Coalfield, Virginia, USA) 3 (29850757934).jpg - Ser Amantio di Nicolao