(W 88°30ʹ00ʺ--W 88°22ʹ30ʺ/N 44°15ʹ00ʺ--N 44°07ʹ30ʺ).
Relief shown by contours and spot heights, depths shown by isolines and soundings.
"Contour interval 10 feet."
"Control by USGS and USC&GS."
"Topography from aerial photographs by Kelsh plotter. Aerial photographs taken 1953. Field check 1955. Hydrography compiled from U.S. Lake Survey chart 726 (1951)."
Horizontal datum name: 1927 North American datum.
10,000-foot grid based on Wisconsin coordinate system, south and central zones.