<P> 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 - mile ( 640 km ) aqueduct is the principal feature of the California State Water Project . </P>
where does the water from the california aqueduct come from
Sierra Nevada Mountains valleys of Northern and Central California to Southern California