Thanks to irrigation in the San Joaquin Valley, Fresno ranks among the nation's leaders in agricultural production, with grapes, figs, almonds, turkeys, cotton, and oranges all contributing to an industry worth more than three billion dollars a year. If your visit coincides with the main blooming season (late February-March), be sure to travel the Blossom Trail, a self-guided tour of about 65 miles featuring almond groves, orange and peach orchards, vineyards, and other sites of historical...