Long Island Gneiss:
I-285 eastbound about 1/2 mile west of Ashford-Dunwoody Road
Atlanta, Georgia

Long Island Gneiss
Mylonitic intermediate gneiss with characteristic blocky fractures
I-285 EB approaching Ashford-Dunwoody Road
Atlanta, Ga

Long Island Gneiss
Sinuous fold/shear
I-285 EB approaching Ashford-Dunwoody Road
Atlanta, Ga

Long Island Gneiss
Flat fracture faces
I-285 EB approaching Ashford-Dunwoody Road
Atlanta, Ga

Long Island gneiss is also exposed along U.S. Hwy. 41.