Country State Classification Source WallNo Centennial Commercial Location surroundPic
United States Pennsylvania Limestone Lebanon 7La15 37860 n Front Face (South) Dscf0132.jpg
No 7LA15 is:

Description

dark blue gray
fine grain
compact
Lower Silurian


Picture of the Archive Stone:
/archive/front/7la15.jpg
Actual Picture from the Stone Wall: /mid2000/7la15.jpg (63575 bytes)