SF bay monochrome
San Francisco Bay is a shallow estuary in the U.S. state of California. It is surrounded by a contiguous region known as the San Francisco Bay Area, and is dominated by the large cities San Francisco, Oakland, and San Jose.
Surface area: 400–1,600 sq mi (1,000–4,100 km2)
Ocean/sea source: Pacific Ocean
Max. length: 97 km (60 mi)
Max. width: 19 km (12 mi)