1983 Map of Point Estero

About this map

Point Estero marks the rugged coastline of San Luis Obispo County in this 1983 topographic-bathymetric study. The map focus is largely maritime, documenting the submarine topography of the Pacific Ocean floor as it drops away from the California coast. Most prominent is the Santa Lucia Bank, a significant undersea feature that dominates the offshore bathymetry. This 1983 edition represents a collaborative effort between the U.S. Geological Survey and the National Ocean Service, combining traditional terrestrial mapping with hydrographic survey data. The map provides a look at the coastal boundary before modern developments, using bathymetric contours to reveal the complex shelf structures that define this section of the Central Coast.