San Joaquin River

History of the San Joaquin River

The San Joaquin River at the junction of Old River ( fish barrier )

The San Joaquin [ ˌ ː ki ː Saen wɑ n] is around 560 km to the Sacramento River is the second longest river in the U.S. state of California. He pours in southeastern California, from the steep western slopes of the Sierra Nevada in the region around the city of Fresno in the San Joaquin Valley and then continues to flow in a north- westerly direction, where he eventually joins in the Sacramento - San Joaquin River Delta to the Sacramento and the Carquinez Strait flows into the bay of San Pablo and San Francisco.

The San Joaquin River and its tributaries Stanislaus River, Tuolumne River, Merced River, Calaveras River and Mokelumne River have a catchment area of ​​approximately 83,000 km ² in the San Joaquin Valley, California.


The San Joaquin has three sources. The southern tributary begins in Martha Lake ( 37 ° 5 ' 39 " N, 118 ° 44' 18" W37.094166666667 - 118.73833333333 ) at an altitude of 3354 m. The average inflow begins in Thousand Iceland Lake in the Ansel Adams Wilderness. The northern tributary begins in an unnamed lake (37 ° 43 ' 33 "N, 119 ° 14' 37 " W37.725833333333 - 119.243611111113410 ) to 3410 m altitude. All three tributaries flow into the Millerton Reservoir.


Coming from the Sierra Nevada to the San Joaquin flows westward in the California Central Valley in the region around Fresno. Clearly, most tributaries in the valley of the San Joaquin. From here, the river flows north-west toward Stockton, where, however, he branched out into several tributaries before Stockton. At the mouth of the Sacramento River, the San Joaquin is the Sacramento - San Joaquin Delta inland.


The San Joaquin River flows at Antioch in the Sacramento River. On the way in this estuary lies the Sacramento - San Joaquin River Delta ( an inland delta). The river splits into numerous estuaries, of which the Old River and Middle River are the largest.