The San Joaquin River is one of the two major rivers that flow into the north end of San Francisco Bay
. It rises on the slopes of Mt. Goddard in Kings Canyon National Park
and flows first northwest, then southwest out of the Sierra Nevada
. Behind Friant Dam, a project of the U.S. Bureau of Reclamation, the river forms Millerton Lake
, a popular recreation spot. Below the dam it flows northeasterly through the Central Valley, through Stockton
before joining the Sacramento River
. The San Joaquin Valley
is one of the most fertile in the United States and the agricultural center for California.