Well, we know that water flows along land contours, and I cannot see how it would scour out almost perfect eliptical bays, especially where some bays have overlapped others. I think it is more likely that a shower of comet fragments falling in clusters from the northwest at an angle to the surface might have created the anomalies. Also, I think that fragments from the big impact at Chesapeake Bay would not have formed secondary craters all aligned from the northwest, and in a pattern only from NC to South Georgia. My thread is in category Nature and Geography......Boris Lesnorsmorfells