(W 84°52ʹ30ʺ--W 84°45ʹ00ʺ/N 46°15ʹ00ʺ--N 46°07ʹ30ʺ).
Relief shown by contours and spot heights.
"Contour interval 10 feet."
"Topography by photogrammetric methods from aerial photographs taken 1955-56. Field checked 1964."
"The Geometronics Service Center has regenerated all map information, with the exception of contours, utilizing digital procedures. Modifications to USGS map base made using 1988 aerial photography and 1992 correction guides furnished by the Eastern Region."