California Seafloor Mapping Program map blocks
![Two map illustrations stacked together to show coastal region with fault lines, geologic units, and coastal map blocks.](https://d9-wret.s3.us-west-2.amazonaws.com/assets/palladium/production/s3fs-public/styles/full_width/public/thumbnails/image/overview_blocks.jpg?itok=VTI16poA)
Detailed Description
Map of coastal California showing boundaries of "map blocks" for which comprehensive seafloor map products will be developed by the USGS Pacific Coastal and Marine Science Center.
Sources/Usage
Public Domain.