Country State Classification Source WallNo Centennial Commercial Location surroundPic
United States Pennsylvania Argillite (Slate) Slatedale 7RA17   y Front Face (South) Dscf0235.jpg
No 7RA17 is:

Description

blue-black
fine grain
roofing and tile slate


ARCHIVE STONE NOT AVAILABLE

Actual Picture from the Stone Wall: /mid2000/7ra17.jpg (63575 bytes)