1968 Map of Covington SW, 1969 Print
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1968 Map of Covington SW

USGS Topo · Published 1969

About this map

Lake Pontchartrain dominates this mid-century hydrographic survey, revealing the vast expanse of open water along the southern edges of St Tammany Parish and Tangipahoa Parish. The map serves as a snapshot of the lake's floor before modern development, based on 1968 planetable surveys and hydrographic data from the late 1960s. Navigational markers such as the three distinct Light points in the southern and eastern reaches of the quadrangle provide essential coordinates for local history enthusiasts tracking early maritime traffic and shoreline changes. The boundary between the two parishes is clearly delineated in the northwestern corner, cutting through the marshy transition into the open water. This specialized survey focuses on depth curves and soundings, offering a rare look at the underwater topography and the precise locations of aids to navigation that guided vessels through these Louisiana waters.


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Map Details

Date Portrayed1968
Date Published1969
PublisherU.S. Geological Survey
Map TypeTopographic
Scale1:24000
Physical Dimensions23 x 26.9 inches

Editions of this 1968 Covington SW Map


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Source Details

CopyrightPublic Domain