This dataset was provided by Chad King with the Monterey Bay National Marine Sanctuary.
The shapefile was developed to provide benthic substrate information for the central/northern California region.
This shapefile displays the distribution of substrate types from Pt. Arena to Pt. Sal in central/northern California. Originally this data consisted of seven paper maps (California Continental Margin Geologic Map Series) with a resolution of 1:250,000. These maps were used as baseline information for recent revisions and incorporation of high resolution multibeam data conducted by geologists from California State University - Monterey Bay and Moss Landing Marine Laboratory.