Country State Classification Source WallNo Centennial Commercial Location surroundPic
United States Pennsylvania Diabase Round Top Gettysburg 6RB16 26375 n Front Face (South) Dscf0109.jpg
No 6RB16 is:

Description

gray
fine grain
porous
Mesozoic


Picture of the Archive Stone:
/archive/front/6rb16.jpg
Actual Picture from the Stone Wall: /mid2000/6rb16.jpg (63575 bytes)