Geolex — Altamaha publications
Publication: Dall, W.H., and Harris, G.D., 1892, Correlation papers; Neocene: U.S. Geological Survey Bulletin, 84, 349 p. Summary: The bluffs of Altamaha River at Rocky Hammock exhibit first example on the river of a formation to which name Altamaha grit may be applied. The last bluff of the grit is only a few rods above the bridge across ...