Geologic Map of the Popolopen Lake Quadrangle, and the Cornwall, West Point and Peekskill Quadrangles West of the Hudson River. 1:24,000 scale. (from PhD thesis, 1m1682).
Geologic Map of the Popolopen Lake Quadrangle, and the Cornwall, West Point and Peekskill Quadrangles West of the Hudson River. 1:24,000 scale. (from PhD thesis, 1m1682).