California Seafloor Mapping Program Map Blocks
About the map
Index map of California, showing locations of 110 CSMP map blocks (red squares), 83 of which are along the mainland coast and 27 are for offshore islands, each to be published at 1:24,000 scale. Published map blocks are shown with gray fill.
Multibeam data is available after processing at http://seafloor.csumb.edu/SFMLwebDATA_SURVEYMAP.htm
Table showing mapping progress by block number, as of April 2017