2021 Map of San Nicolas Island OE N

About this map

Pacific Ocean waters dominate this coastal quadrangle, which documents the northern offshore environment of the Channel Islands. The map captures the meeting of the sea and the extreme southwestern shoreline of San Nicolas Island, where topographic contours reveal the steep ascent from the waterline toward the island's interior plateau. Produced in 2021 by the U.S. Geological Survey, the chart illustrates the bathymetric and maritime context of this Ventura County outpost, highlighting the relative isolation of the island within the larger archipelago. This survey is a critical reference for understanding the modern coastal boundary and the rugged maritime geography of one of California’s most secluded offshore territories.