In between Junction Canal and California Aqueduct which one was last used in 1871, and was then abandoned?
California Aqueduct The Governor Edmund G. Brown California Aqueduct is a system of canals, tunnels, and pipelines that conveys water collected from the Sierra Nevada Mountains and valleys of Northern and Central California to Southern California. Named after California Governor Edmund Gerald "Pat" Brown Sr., the over 400 mi aqueduct is the principal feature of the California State Water Project.
California and Nevada Railroad The California and Nevada Railroad was a narrow gauge steam railroad which ran in the East Bay of the San Francisco Bay Area in the late 19th century. It was incorporated on March 25, 1884. J.S. Emery was listed as the railroad's president, for which present day Emeryville is named. On March 1, 1885 the track was completed between Oakland and San Pablo via Emeryville. The track to Oak Grove (present day El Sobrante) was completed on January 1, 1887.