1920s – Prohibition liquor is brought in by ship through Moss Landing and stored in the “Booze Barn” at the current Kaiser site.

1930s – This map shows how extensively oyster farming was practiced in the '30s, as well as the saltworks near the mouth of the slough (the area labled "Mud" was also part of the evaporative pond system). It was the use of imported oysters that introduced the invasive (and pervasive) Japanese Horn Snail (Batillaria attramentaria) to the slough. Oysters were cultured here into the 1970s.

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