Скачать или смотреть EXPLORING THE SAN DIEGO SALT MINE

This is the second-longest running business in San Diego, behind the San Diego Union Tribune. Initially the operation began as the La Punta Salt Company. Records date it back to at least 1871, while another sources state that the area has been used as a salt works as early as the 1860s. It has been in operation since the 1870s, when the city first experienced the effects of the Industrial Revolution. In 1883, the salt works were the only salt producer in the United States, supplying the salt needs of all of Southern California. Around the turn of the 20th century, the salt works were the only industrial employment in the Chula Vista area, other than produce packing plants.
In 1902, La Punta Salt Works was purchased, and renamed to Western Salt Company. In the 1910s, about forty thousand tons of salt were harvested annually from the salt works. In 1915, a narrow-gauge railway was installed, and crossed over standard-gauge rail of the San Diego and Arizona Railway; the narrow-gauge railway was dismantled in the 1970s, except for where it crossed over standard-gauge rail, preserving the only instance of such an occurrence in the United States.

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