This paper represents a preliminary attempt to synthesize studies that were begun in 1962 and continued for 14 of the 17 intervening years. Walton (Walton and de Waard, 1963), assisted in part by the writer, mapped part of the Paradox Lake quadrangle included in the present synthesis. Detailed field investigations I have made in that quadrangle since Walton's work have resulted in a new interpretation of the structure and stratigraphy. The enormity and complexity of the structure mandate the collection of more data to augment the already large body of data for adjacent parts of the Newcomb, Thirteenth Lake, Schroon Lake, Paradox Lake, North Creek, and Bolton Landing quadrangles (Fig. 1) before a final synthesis is possible. Also included in the present synthesis in my interpretation of Geraghty's (1973) work in the northeast quadrant of the North Creek quadrangle.
Balk (1932) conducted a classic study of the Newcomb quadrangle and obtained extensive structural data. Balk's conclusions have been extended by subdividing rock units that he lumped and by measuring minor folds in relation to modern thoughts on polyphase folding in the region.