Salinas River

The Salinas River is the longest river of the Central Coast region of California, running 175 miles and draining 4,160 square miles. It flows north-northwest and drains the Salinas Valley that slices through the central California Coast Ranges south of Monterey Bay. The river begins in southern San Luis Obispo County, originating in the Los Machos Hills of the Los Padres National Forest. From there, the river flows north into Monterey County, eventually making its way to connect with the Monterey Bay, part of the Pacific Ocean, approximately 5 miles south of Moss Landing. The river is a wildlife corridor, and provides the principal source of water from its reservoirs and tributaries for the farms and vineyards of the valley.

Until recently, the Salinas River had a continuous flow throughout the year, stretching back to at least 1941—when United States Geological Survey began complete monitoring records in the Salinas area—through 1989. Most probably primarily due to recent increases in agricultural water demand in the Salinas Valley, and the resultant lowering of water tables, the lower reaches of the Salinas river remained entirely dry during the three years 2013–2016.

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