Willis Fletcher Johnson, History of the Johnstown Flood
“ By side thrusts it scoured every cave and bend in the line of the mountains, lessening its direct force to exert power laterally, but at the same time moving its centre straight on Johnstown. It is well to state that the Conemaugh river is tortuous, like most streams of its kind. Wherever the mountains retreat, flats make out from them to the channel of the stream. It was on such flats that South Fork and Mineral Point villages and the boroughs of Conemaugh, Franklin, Woodvale, East Conemaugh and Johnstown were built. ”
