SF maps and history...

https://upload.wikimedia.org/wikipedia/commons/d/d5/1853_U.S.C.S._Map_of_San_Francisco%2C_California_%5E_Vicinity_-_Geographicus_-_SanFrancisco3-uscs-1853.jpg

https://upload.wikimedia.org/wikipedia/commons/9/9d/1858_U.S._Coast_Survey_Chart_or_Map_of_San_Francisco%2C_Califorina_-_Geographicus_-_SanFrancisco-uscs-1859.jpg

https://upload.wikimedia.org/wikipedia/commons/8/82/1869_U.S._Coast_Survey_Map_of_the_San_Francisco_Peninsula_-_Geographicus_-_SanFranciscoPeninsula2-uscs-1869.jpg

https://en.wikipedia.org/wiki/Port_of_San_Francisco#History

http://www.sfgenealogy.com/sf/history/sindex.htm

https://en.wikipedia.org/wiki/Stockton_Street_Tunnel 911'
http://www.sfgenealogy.com/sf/history/hgtun.htm

https://en.wikipedia.org/wiki/Broadway_Tunnel_(San_Francisco)


https://www.skyscrapercenter.com/SF


https://www.skyscrapercenter.com/complex/539 rincon hill