The Pacific Ocean dominates this maritime survey, illustrating the isolated position of the easternmost reach of the Channel Islands chain in 2018. A small, rocky outcropping within the Channel Islands National Park is the only terrestrial feature shown, situated in the southwest corner of the sheet. The map serves primarily as a nautical reference for the waters surrounding these protected islands, where steep bathymetric contours drop away from the shoreline into the open sea. This perspective emphasizes the importance of the park's marine boundaries and the maritime environment that separates the islands from the California mainland of Ventura County.
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This is the sole edition of this map. No revisions or reprints were ever made.
1904 · Hueneme
USGS Topo · 1:62,500
1942 · Hueneme
USGS Topo · 1:62,500
1943 · Hueneme
USGS Topo · 1:62,500
1949 · Los Angeles
USGS Topo · 1:250,000
1949 · Long Beach
USGS Topo · 1:250,000
1949 · Oxnard
USGS Topo · 1:24,000
1951 · Oxnard
USGS Topo · 1:24,000
1955 · Los Angeles
USGS Topo · 1:250,000
1957 · Long Beach
USGS Topo · 1:250,000
1958 · Long Beach
USGS Topo · 1:250,000