(W 85|p0|s07�30�--W 84|p0|s22�30�/N 46|p0|s37�30�--N 45|p0|s45�00�).
These sheets form part of the 1986 interim revision of the Hiawatha National Forest 7.5 minute series topographic map modified for USDA Forest Service use.
Relief shown by contours and spot heights.
Depth shown by isolines and soundings.
Provisional base map prepared by U.S. Geological Survey, compiled from aerial photographs taken 1977, field checked 1980, map edited 1983.
"Modification to USGS base map by the Geometronics Service Center from 1981 aerial photography and 1983 correction guides furnished by the Eastern Region."