Mallard, California
Mallard is a former settlement in Alameda County, California. It was located on the Southern Pacific Railroad 1 mile east-southeast of the present downtown Fremont, at an elevation of 52 feet.
Mallard is also the name of a former ferry slip of the Sacramento Northern Railway, located along the Sacramento-San Joaquin Delta shoreline of Contra Costa County, California, at West Pittsburg. The ferry slip took its name from Mallard Slough, a naturally forming inlet off Suisun Bay, near where the railroad tracks terminated at the slip. Mallard Slough is now the site of a pump station for the Contra Costa Water District. At the ferry slip, passenger rail cars of the electric interurban line run by the SN were carried across the water to Chipps Island, proceeding on rails there into Solano County, toward Sacramento.