In the lowlands of the San Joaquin Valley, last winter’s torrential storms revived an ancient body of water drained and dredged decades ago, its clay lakebed transformed into a powerhouse of industrial agriculture. Rivers swollen with biblical amounts of rainfall overwhelmed the network of levees and irrigation canals that weave through the basin diverting water for farm and livestock use. Tulare Lake, once the largest freshwater lake west of the Mississippi River, was reborn, swallowing thousands of acres cultivated for tomatoes and cotton and vast orchards of almond and pistachio trees.