
The coastal defense and maritime infrastructure of Casco Bay define this tactical survey, compiled during the First World War. Strategic points are anchored by major military installations, including Fort McKinley on Great Diamond Island and Fort Williams near the Portland Head Light. The city of Portland and its surrounding boroughs like Woodfords and East Deering serve as the commercial hub, where the Grand Trunk RR and Boston and Maine RR converge on the bustling waterfront at Back Cove and the Fore River.
185 named features on this map. Tap any name to fly to it.
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This is the sole edition of this map. No revisions or reprints were ever made.
1891 · Portland
USGS Topo · 1:62,500
1891 · Biddeford
USGS Topo · 1:62,500
1891 · Kennebunk
USGS Topo · 1:62,500
1891 · Buxton
USGS Topo · 1:62,500
1892 · Freeport
USGS Topo · 1:62,500
1892 · Buxton
USGS Topo · 1:62,500
1893 · Kennebunk
USGS Topo · 1:62,500
1893 · Biddeford
USGS Topo · 1:62,500
1893 · Small Point
USGS Topo · 1:62,500
1893 · Portland
USGS Topo · 1:62,500