mega-syncline in folded Devonian-Mississipian. A local exhibition center explains the structure.
See:
http://www.mgs.md.gov/esic/features/sidel.html
PhotoID405
mega-syncline in folded Devonian-Mississipian. A local exhibition center explains the structure.
See:
http://www.mgs.md.gov/esic/features/sidel.html
PhotoID405
Photograph: