Country State Classification Source WallNo Centennial Commercial Location surroundPic
United States Illinois Dolomite Sag's Bridge 14RA4 27505/1 n y Front Face (South) Dscf0627.jpg
No 14RA4 is:

Description

nearly white
fine grain
compact
Upper Silurian


Picture of the Archive Stone:
/archive/front/14ra4.jpg
Actual Picture from the Stone Wall: /mid2000/14ra4.jpg (63575 bytes)