While it's essentially a tracing job, it's not quite as straight forward.
What you get is this:
here. It's a vector image created in Adobe Illustrator with a map base created in GIS software and additional data added. I put reference links to the original image where possible.
This is the original map:
You can see the general shape of the land mass in the image. The shape of the coastline is directly pulled from this image. However, since the final image was reproduced at 8' wide, I added more detail to the map using other maps of the Southern California area.
This is a reference image that I used to create the oil platform icon:
Federal boundaries (represented in purple) and shipping lanes (teal) were traced from a nautical map:
And the final layer was of Areas of Special Biological Significance (ASBS) represented by an outline of the Garibaldi (yellow):
Just a little look behind the scenes of everyday illustrations, making science and data more beautiful through art.