The vast marine expanse of the Gulf of Alaska dominates this 2018 survey, which focuses on a coastal sector within the Valdez-Cordova Census Area. The map captures a section of the northern Pacific where the open ocean meets the rugged Alaskan coastline. Unlike many terrestrial topographic sheets, this particular survey lacks interior elevation contours because available data did not meet accuracy standards during the 2011 product production cycle. Instead, the focus remains on the maritime boundary and the precise coordinate tracking of this remote northern coastline. The sheet serves as a primary reference for the offshore geography of the Unorganized Borough during the early twenty-first century, documenting the intersection of sea and land before the implementation of more detailed inland relief mapping.
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This is the sole edition of this map. No revisions or reprints were ever made.
1948 · Cordova
USGS Topo · 1:250,000
1950 · Cordova B-7
USGS Topo · 1:63,360
1951 · Cordova
USGS Topo · 1:250,000
1951 · Cordova B-6
USGS Topo · 1:63,360
1953 · Cordova B-7
USGS Topo · 1:63,360
1953 · Cordova B-6
USGS Topo · 1:63,360
1959 · Cordova
USGS Topo · 1:250,000
1997 · Cordova B-7
USGS Topo · 1:63,360
2018 · Cordova A-7 NW
USGS Topo · 1:25,000
2018 · Cordova B-7 SE
USGS Topo · 1:25,000