Country State Classification Source WallNo Centennial Commercial Location surroundPic
United States Pennsylvania Limestone Morrell 13RB8 26162 y Front Face (South) Dscf0456.jpg
No 13RB8 is:

Description
dark gray
coarse grain
compact
magnesian
Lower Silurian


Picture of the Archive Stone:
/archive/front/13rb8.jpg		 Actual Picture from the Stone Wall: /mid2000/13rb8.jpg (63575 bytes)