
Potagannissing Bay and its complex archipelago of islands define this mid-century maritime survey along the international border between Michigan and Ontario. The landscape is characterized by the varied terrain of Drummond Twp, where large tracts of the Lake Superior State Forest cover the southern shorelines. To the east, the Harbor Island National Wildlife Refuge encompasses several landmasses including the horseshoe-shaped Harbor Island, while the western waters are marked by the navigational passage of the De Tour Passage Saint Marys River.
63 named features on this map. Tap any name to fly to it.
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3 editions found
1954 · Alpena
USGS Topo · 1:250,000
1957 · Alpena
USGS Topo · 1:250,000
1958 · Alpena
USGS Topo · 1:250,000
1961 · Blind River
USGS Topo · 1:250,000
1964 · De Tour Village
USGS Topo · 1:24,000
1964 · Drummond
USGS Topo · 1:24,000
1964 · Whitney Bay
USGS Topo · 1:24,000
1964 · Lime Island
USGS Topo · 1:24,000
1964 · Meade Island
USGS Topo · 1:24,000
1964 · Burnt Island
USGS Topo · 1:24,000