As yet another season of drought returns to California, the mood has grown increasingly grim across the vast and fertile San Joaquin Valley. Renowned for its bounty of dairies, row crops, grapes, almonds, pistachios and fruit trees, this agricultural heartland is still reeling from the effects of the last punishing drought, which left the region geologically depressed and mentally traumatized. Now, as the valley braces for another dry spell of undetermined duration, some are openly questioning the future of farming here, even as legislative representatives call on Gov. Gavin Newsom to declare a drought emergency. Many small, predominantly Latino communities also face the risk of having their wells run dry.