Pier 70, San Francisco
37°45′35.34″N 122°23′0.87″W / 37.7598167°N 122.3835750°W
Pier 70 in San Francisco, California, is a historic pier in San Francisco's Potrero Point neighborhood, home to the Union Iron Works and later to Bethlehem Shipbuilding. It was one of the largest industrial sites in San Francisco during the two World Wars. Today, it is among the best-preserved 19th century industrial complexes west of the Mississippi.