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1956 Map of Card Sound, 1957 Print
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1956 Map of Card Sound

USGS Topo · Published 1957

About this map

The northern tip of Key Largo and its surrounding archipelago appear here in a mid-century survey that documents the early footprint of modern development in the Upper Keys. While much of the landscape remains a complex web of mangrove shorelines and interior waters like Crocodile Lake, the emergence of the Ocean Reef Club and the settlement at Grayvik mark a transition toward the area's role as a recreational destination. The map details a sophisticated network of tropical keys including Palo Alto Key, Old Rhodes Key, and Angelfish Key, separated by narrow channels such as Broad Creek and Angelfish Creek. Navigation is a central theme of this coastal study, highlighting the Intracostal Waterway as it cuts through Card Sound and Little Card Sound, providing a vital transit corridor between the mainland and the outer reef.

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Map Details

Date Portrayed1956
Date Published1957
PublisherU.S. Geological Survey
Map TypeTopographic
Scale1:24,000
Physical Dimensions22.9 x 26.7 inches

Editions of this 1956 Card Sound Map

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Source Details

SourceU.S. Geological Survey
CopyrightPublic Domain