Text for the Geologic Map of Region J - CHATHAM, DURHAM, JOHNSTON, LEE, ORANGE, and WAKE Counties, North Carolina, 1:125,000-scale by Wilson, W.F., Carpenter, P.A., III, and Parker, J.M. III, 1981.
NCGS_OFR_81-05_Region_J_text.pdf
This is the text for the Geologic Map of Region J