The vast expanse of the Pacific Ocean dominates this maritime survey, illustrating the isolated coastal environment of the northern Channel Islands. This 2018 edition provides a modern topographic record of the waters surrounding the southwestern portion of San Nicolas Island, highlighting the steep underwater drop-offs indicated by the concentrated contour lines along the island's perimeter. The shoreline depicted here is part of a sensitive military and ecological zone managed by the U.S. Department of the Interior and the U.S. Geological Survey. Researchers of coastal topography will find the sharp transition from the island's interior elevations to the sea floor particularly useful for studying erosion and marine geomorphology in this remote section of Ventura County.
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This is the sole edition of this map. No revisions or reprints were ever made.
1943 · San Nicolas Island
USGS Topo · 1:24,000
1949 · Long Beach
USGS Topo · 1:250,000
1956 · San Nicolas Island
USGS Topo · 1:24,000
1957 · Long Beach
USGS Topo · 1:250,000
1958 · Long Beach
USGS Topo · 1:250,000
1960 · Long Beach
USGS Topo · 1:250,000
1993 · San Nicolas Island
USGS Topo · 1:100,000
2012 · San Nicolas Island OE NW
USGS Topo · 1:24,000
2012 · San Nicolas Island
USGS Topo · 1:24,000
2012 · San Nicolas Island OE N
USGS Topo · 1:24,000