Country State Classification Source WallNo Centennial Commercial Location surroundPic
United States Pennsylvania Limestone N. Annville 13RB36 37887 n Front Face (South) Dscf0479.jpg
No 13RB36 is:

Description
darka blue gray
fine grain
compact
Lower Silurian


Picture of the Archive Stone:
/archive/front/13rb36.jpg		 Actual Picture from the Stone Wall: /mid2000/13rb36.jpg (63575 bytes)