Porcupine Mountains, Michigan
1956 with revisions 1:62,500 USGS topographic maps composite with shaded relief.
1956 with revisions 1:62,500 USGS topographic maps composite with shaded relief.
1958 revised 1978 La Crosse, Wisconsin 1:250,000 USGS topographic map with shaded relief.
1903 Castine, Maine 1:62,500 USGS topographic map with shaded relief.
1980 Little Girls Point 1:24,000 USGS topographic map with shaded relief.