San Francisco Bay Area - Wikipedia, the free encyclopedia

1 Sub-regions 1.1 East Bay 1.2 North Bay 1.3 Peninsula 1.4 San Francisco 1.5 South Bay and Silicon Valley 1.6 Outer Bay 2 History 3 Economy 4 Metropolitan area 5 Demographics 6 Politics 7 Climate 8 Ecology 9 Geology and landforms 9.1 Multiple terrains 9.2

en.wikipedia.org