Relief shown by contours and spot heights., "Compiled from 1:62,500 scale maps dated 1942, 1943, and 1956. Revised from aerial photographs taken 1970. Field checked 1971.", "Polyconic projection. 1927 North American datum.", and Includes insets of Isle au Haut (Knox County) and Schoodie Peninsula.
Available also through the Library of Congress Web site as a raster image.