San Francisco Bay Area nine-county map, color coded by region:
     North Bay
     East Bay
     San Francisco
     Peninsula
     South Bay
color scheme: File:Bayarea map.svg
vector source: File:California Bay Area county map.svg
this combination: Own work
color scheme: PerryPlanet at English Wikivoyage
vector source: GEreikat at English Wikipedia
this combination: Mliu92