“The Heart of Ship-Building”
—SF Heritage
Pier 70 – Potrero Point

“Potrero Point contained the densest concentration of heavy industry in San Francisco after the Civil War in anticipation of the transcontinental railroad. Between 1856 and 1884, companies including United Iron...”
550 20th St
San Francisco, California, 94107
http://pier70sf.org
Pier 70 – Potrero Point is from Essentially SF: The City's Architectural Icons by SF Heritage.
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