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1916 Map of Casco Bay, 1941 Print
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1916 Map of Casco Bay

USGS Topo · Published 1941

About this map

Coastal defense and maritime transit define this landscape during the First World War era, as heavy fortifications guard the approaches to Portland and South Portland. Key military installations like Fort Mc Kinley, Fort Preble, and Fort Scammel overlook the complex network of islands and deep-water passages. Inshore, the Marine Hospital and a Quarantine Station indicate the vital role of the harbor in regional health and commerce.

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Map Details

Date Portrayed1916
Date Published1941
PublisherU.S. Geological Survey
Map TypeTopographic
Scale1:62,500
Physical Dimensions15.5 x 20.3 inches

Editions of this 1916 Casco Bay Map

Historical Maps of Portland Through Time

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Source Details

SourceU.S. Geological Survey
CopyrightPublic Domain