Country State Classification Source WallNo Centennial Commercial Location surroundPic
United States Iowa Dolomite Humbolt 13RA13 26062 y Front Face (South) Dscf0461.jpg
No 13RA13 is:

Description

gray
compact
fine grain
Lower carboniferous


ARCHIVE STONE NOT AVAILABLE

Actual Picture from the Stone Wall: /mid2000/13ra13.jpg (63575 bytes)