This early Earthpattern treatment of the US’s Mid-Atlantic region used cool colors to offset graphically a beige highlighting – …this in turn made contrasts within the Allegheny Plateau with its lightning bolt valley incisions, and the ridge and valley folded hills of the more southeasterly highlands. Dark grays near the seashore suppress the lines of today’s ocean margin, and instead allow the Fall Line and the moraines of Long Island to speak with more strength. The sinuous rifting trends are made more precarious by the slight clockwise rotation from north.