Alpha, TR. 1970. Central San Francisco Bay. Menlo Park, CA:United States Geological Survey.
I’m really glad I found this map, the detail is amazing. It’s an absolutely wonderful hand drawn map by Tau Rho Alpha who worked for USGS. The USGS on their website dubbed Alpha “marine geology’s illustrator extraordinaire.” My favorite pieces of this map are the Golden Gate and the location and design of the north arrow. Beautiful.